Vehicle Equip And Rearm Function Reference

Vehicle Equip and Rearm Function Reference

Source-verified 2026-06-21 against then-current master cf2a6d6a4; current origin/master is 0139a346, so recheck cited paths before current-head claims. Paths relative to Missions/[55-2hc]warfarev2_073v48co.chernarus/ unless noted. Arma 2 OA 1.64.

This page documents the post-spawn vehicle and unit modification pipeline: how units receive loadouts, how vehicles get cargo, how every vehicle gets rearmed after a service call, and the per-type damage-reduction closures applied at spawn time. These functions are registered in Common/Init/Init_Common.sqf and several are split into vanilla / OA variants selected at startup via the WF_A2_Vanilla preprocessor flag.

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Runtime flag: WF_A2_Vanilla

Set at initJIPCompatible.sqf:95–97 via #ifdef VANILLA. When false (the shipping Arrowhead / Combined Ops build), several functions are replaced with OA variants that use Global-suffixed commands and turret-path-aware APIs. The table below notes which functions diverge.

Flag	Value in shipping build	Effect
WF_A2_Vanilla	false	OA variants active for Rearm, EquipVehicle, EquipBackpack, ClearVehicleCargo, SetTurretsMagazines, RemoveCountermeasures
IS_chernarus_map_dependent	true on Chernarus, false on desert maps	Controls texture branch in Common_AddVehicleTexture.sqf

Source: initJIPCompatible.sqf:95-117

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Unit loadout functions

WFBE_CO_FNC_EquipUnit

Registered at Common/Init/Init_Common.sqf:110.

Signature

[_unit, _weapons, _magazines, _eligible, {_backpack}, {_backpack_content}] Call WFBE_CO_FNC_EquipUnit

Position	Parameter	Type	Notes
0	_unit	Object	Unit to equip
1	_weapons	Array of String	Weapon class names, passed to addWeapon
2	_magazines	Array of String	Magazine class names, passed to addMagazine
3	_eligible	Array of String	Priority weapon list; first non-empty string is selected via selectWeapon
4	_backpack	String (optional)	Backpack class or "" to remove existing backpack
5	_backpack_content	Array (optional)	Content struct (see EquipBackpack)

Behavior (Common/Functions/Common_EquipUnit.sqf:22-37)

1. removeAllWeapons then removeAllItems on _unit.
2. Adds all _weapons first, then all _magazines. (Weapons must precede magazines so each magazine binds to a matching muzzle; reversing the order causes OA to throw "Cannot use magazine X in muzzle Y".)
3. Iterates _eligible; on the first non-empty string, reads CfgWeapons >> _use >> muzzles — if the muzzle list contains "this" the weapon is selected directly, otherwise _muzzles select 0 is selected.
4. Delegates to WFBE_CO_FNC_EquipBackpack with [_unit, _backpack, _backpack_content].

Call sites

Site	Context
Client/Init/Init_Client.sqf:579,581	Player initial loadout on join
Client/GUI/GUI_BuyGearMenu.sqf:429	Gear store purchase
Client/Functions/Client_OnRespawnHandler.sqf:74,101,103	Player respawn
Server/AI/AI_AdvancedRespawn.sqf:72,74	AI respawn (OA path)
Server/AI/AI_SquadRespawn.sqf:60,62	AI respawn (vanilla path)

Source: Common/Functions/Common_EquipUnit.sqf:12-37

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EquipLoadout

Registered at Common/Init/Init_Common.sqf:22. Legacy entry point; its call site in Client/Init/Init_Client.sqf:562 is commented out.

Signature

[_unit, _weapons, _ammo] Call EquipLoadout

Position	Parameter	Type
0	_unit	Object
1	_weapons	Array of String
2	_ammo	Array of String

Behavior (Common/Functions/Common_EquipLoadout.sqf:7-25)

Calls removeAllWeapons + removeAllItems, adds weapons then magazines (weapons must be added first so each magazine binds to the correct muzzle in OA; the source has a //--- Weapons FIRST comment at line 18), then selects a weapon as follows: first calls primaryWeapon _unit; if the result is non-empty it is used directly as _use. Only if _use == "" does it fall back to scanning _weapons for a CfgWeapons >> type in [1,2,4,5] (primary/handgun/GL/launcher). Unlike EquipUnit, it has no _eligible priority list and no backpack handling. Status: effectively dead — replaced by WFBE_CO_FNC_EquipUnit everywhere active.

Source: Common/Functions/Common_EquipLoadout.sqf:1-25

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WFBE_CO_FNC_EquipBackpack

Registered at Common/Init/Init_Common.sqf:109. OA only — the vanilla assignment is {{}} (no-op).

Signature

[_unit, _backpack, {_backpack_content}] Call WFBE_CO_FNC_EquipBackpack

Position	Parameter	Type	Notes
0	_unit	Object
1	_backpack	String	Class name or ""
2	_backpack_content	Array (optional)	[[[weapons],[counts]],[[mags],[counts]]]

Behavior (Common/Functions/Common_EquipBackpack.sqf:16-42)

1. Always removes the existing backpack via unitBackpack + removeBackpack.
2. If _backpack != "", adds the backpack and clears its default contents with clearWeaponCargoGlobal + clearMagazineCargoGlobal.
3. Iterates the content struct (index 0 = weapons, index 1 = magazines) and calls addWeaponCargoGlobal / addMagazineCargoGlobal on the backpack object.

Content struct layout (mirrors EquipVehicle cargo struct):

_backpack_content = [
    [[weapon_class, ...], [count, ...]],   // index 0: weapons
    [[mag_class, ...],    [count, ...]]    // index 1: magazines
]

Source: Common/Functions/Common_EquipBackpack.sqf:9-42

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Vehicle cargo functions

WFBE_CO_FNC_EquipVehicle

Registered at Common/Init/Init_Common.sqf:111. OA only — vanilla assignment is {{}}.

Signature

[_vehicle, _vehicle_content] Call WFBE_CO_FNC_EquipVehicle

Position	Parameter	Type	Notes
0	_vehicle	Object	Vehicle must be alive; no-op otherwise
1	_vehicle_content	Array	Three-slot content struct

Content struct layout (Common/Functions/Common_EquipVehicle.sqf:24-38):

_vehicle_content = [
    [[weapon_class, ...], [count, ...]],   // index 0: weapon cargo
    [[mag_class,    ...], [count, ...]],   // index 1: magazine cargo
    [[backpack_class,...],[count, ...]]    // index 2: backpack cargo
]

Behavior

1. Guards on alive _vehicle; exits silently if dead.
2. Clears all three cargo types with clearWeaponCargoGlobal, clearMagazineCargoGlobal, clearBackpackCargoGlobal.
3. Exits early if count _vehicle_content == 0.
4. Iterates each slot and calls addWeaponCargoGlobal, addMagazineCargoGlobal, addBackpackCargoGlobal.

Call site: Client/GUI/GUI_BuyGearMenu.sqf:439 — invoked after EquipUnit when the player selects vehicle cargo in the gear store.

Source: Common/Functions/Common_EquipVehicle.sqf:8-40

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WFBE_CO_FNC_ClearVehicleCargo

Registered at Common/Init/Init_Common.sqf:101. Variant selected by WF_A2_Vanilla.

Variant	File	Commands used
Vanilla	Common_ClearVehicleCargo.sqf	clearMagazineCargo, clearWeaponCargo (local)
OA	Common_ClearVehicleCargoOA.sqf	clearMagazineCargoGlobal, clearWeaponCargoGlobal, clearBackpackCargoGlobal (global)

Signature (both variants)

_vehicle Call WFBE_CO_FNC_ClearVehicleCargo

The OA variant adds a guard: it only calls clearMagazineCargoGlobal when count ((getMagazineCargo _vehicle) select 0) > 0, and similarly for weapons and backpacks, avoiding unnecessary global traffic.

Source: Common/Functions/Common_ClearVehicleCargo.sqf:1-12, Common/Functions/Common_ClearVehicleCargoOA.sqf:1-13

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Rearm pipeline

RearmVehicle is the single entry point for service-station rearming. It is registered at Common/Init/Init_Common.sqf:73 and is always called as [_vehicle, _side] Spawn RearmVehicle (or Call; the call site at Client/Functions/Client_SupportRearm.sqf:77 uses Spawn).

The vanilla and OA pipelines are not interchangeable — using the wrong one silently produces the wrong magazine state.

Pipeline comparison

Step	Vanilla (Common_RearmVehicle.sqf)	OA (Common_RearmVehicleOA.sqf)
SAM / StaticAT fast path	setVehicleAmmo 1 and return	setVehicleAmmo 1 and return
Clear existing rounds	removeMagazine forEach magazines _vehicle	_vehicle setVehicleAmmo 0
Restore main turret	Reads CfgVehicles >> typeOf >> Turrets >> MainTurret >> Magazines + CfgVehicles >> typeOf >> Magazines, then addMagazine forEach	WFBE_CO_FNC_GetVehicleTurretsGear + WFBE_CO_FNC_SetTurretsMagazines (turret-path-aware)
Driver magazines	Not separate	CfgVehicles >> typeOf >> magazines → addMagazineTurret [_x, [-1]]
Full fill	setVehicleAmmo 1 + reload _vehicle	reload _vehicle only (OA zeroed ammo earlier via setVehicleAmmo 0)
IRS reset	Yes (both)	Yes (both)
Flare/CM reset	Yes (WFBE_C_MODULE_WFBE_FLARES switch)	Yes (WF_A2_Vanilla guard; case 0 disables CM)
Artillery extended mags	EquipArtillery if IsArtillery != -1	EquipArtillery if IsArtillery != -1
Balance init	BalanceInit if WFBE_C_UNITS_BALANCING > 0 and not M6_EP1	Same
AA missile gating	WFBE_C_GAMEPLAY_AIR_AA_MISSILES switch	Same
EASA module	EASA_Equip if vehicle in WFBE_EASA_Vehicles	Same

Signature (both variants)

[_vehicle, _side] Call RearmVehicle

Position	Parameter	Type
0	_vehicle	Object
1	_side	Side value (west/east/resistance)

SAM fast-path classes hardcoded at lines 6–7 of both files:

_sam = ['2S6M_Tunguska','M6_EP1']

Both classes and all isKindOf "StaticATWeapon" vehicles skip all magazine manipulation and receive setVehicleAmmo 1 only.

Source: Common/Functions/Common_RearmVehicle.sqf:1-69, Common/Functions/Common_RearmVehicleOA.sqf:1-68

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Upgrade constants used during rearm

Constant	Value	Purpose
WFBE_UP_FLARESCM	9	Flare / countermeasure upgrade index
WFBE_UP_ARTYAMMO	17	Artillery extended ammo upgrade index
WFBE_UP_AIRAAM	19	Air-to-air missile upgrade index

Source: Common/Init/Init_CommonConstants.sqf:46,54,56

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CM / AA missile gating logic

Vanilla RearmVehicle (air vehicles only):

• WFBE_C_MODULE_WFBE_FLARES == 1 (enabled with upgrades): sets FlareCount only if WFBE_UP_FLARESCM > 0.
• WFBE_C_MODULE_WFBE_FLARES == 2 (always enabled): sets FlareCount unconditionally.
• WFBE_C_GAMEPLAY_AIR_AA_MISSILES == 0: calls WFBE_CO_FNC_RemoveAAMissiles.
• WFBE_C_GAMEPLAY_AIR_AA_MISSILES == 1: removes AA missiles unless WFBE_UP_AIRAAM > 0.

OA RearmVehicleOA (air vehicles only):

• Same AA missile gating as vanilla.
• CM case: skipped entirely when WF_A2_Vanilla is true. When false:
  • WFBE_C_MODULE_WFBE_FLARES == 0: calls WFBE_CO_FNC_RemoveCountermeasures.
  • WFBE_C_MODULE_WFBE_FLARES == 1: removes countermeasures unless WFBE_UP_FLARESCM > 0.

Source: Common/Functions/Common_RearmVehicle.sqf:17-30,53-62, Common/Functions/Common_RearmVehicleOA.sqf:39-61

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Turret gear helpers (OA only)

WFBE_CO_FNC_GetVehicleTurretsGear

Registered at Common/Init/Init_Common.sqf:141.

Signature

_vehicle Call WFBE_CO_FNC_GetVehicleTurretsGear
// or
"ClassName" Call WFBE_CO_FNC_GetVehicleTurretsGear

Accepts either an object or a class name string. Reads configFile >> "CfgVehicles" >> typeOf _this >> "turrets" and delegates to WFBE_CO_FNC_FindTurretsRecursive.

Return value: array of turret entries. Each entry:

[weapons_array, magazines_array, turret_path_array, config_path_string]

Example (from inline comment in source):

[["M256","M240BC_veh"],["20Rnd_120mmSABOT_M1A2","20Rnd_120mmHE_M1A2","1200Rnd_762x51_M240"],[0],"bin\config.bin/CfgVehicles/M1A2_TUSK_MG/Turrets/MainTurret"]

Source: Common/Functions/Common_GetVehicleTurretsGear.sqf:1-13

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WFBE_CO_FNC_FindTurretsRecursive

Registered at Common/Init/Init_Common.sqf:112. Called by GetVehicleTurretsGear; not called directly in production code.

Signature

[_configRoot, _turretPath] Call WFBE_CO_FNC_FindTurretsRecursive

Iterates over config classes in _configRoot. For each class it appends [weapons, magazines, currentPath, str _class] to the outer _result array and then recurses into _class >> "turrets" if that key is a class. Operates on the shared _result variable declared by GetVehicleTurretsGear.

Source: Common/Functions/Common_FindTurretsRecursive.sqf:1-20

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WFBE_CO_FNC_SetTurretsMagazines

Registered at Common/Init/Init_Common.sqf:151. OA only — vanilla assignment is {{}}.

Signature

[_vehicle, _turretsData] Call WFBE_CO_FNC_SetTurretsMagazines

Position	Parameter	Type	Notes
0	_vehicle	Object
1	_turretsData	Array	Output of WFBE_CO_FNC_GetVehicleTurretsGear

Behavior: iterates _turretsData; for each entry reads _x select 2 as the turret path and _x select 1 as the magazine list, then calls addMagazineTurret [_mag, _turretPath] for each magazine. Returns true.

Source: Common/Functions/Common_SetTurretsMagazines.sqf:1-17

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SpawnTurrets

Registered at Common/Init/Init_Common.sqf:81. Used by static defense construction, not by RearmVehicle.

Signature

[_turrets, _path, _vehicle, _crew, _team] Call SpawnTurrets

Position	Parameter	Type	Notes
0	_turrets	Array	Flat list of alternating [turretIndex, subTurretArray, ...] pairs
1	_path	Array	Current turret path prefix (empty [] at root)
2	_vehicle	Object
3	_crew	String	Unit class for spawned crew
4	_team	Group	Group the new unit joins

Behavior (Common/Functions/Common_SpawnTurrets.sqf:9-21): iterates the turret list two elements at a time. For each turret index _turretIndex, builds _thisTurret = _path + [_turretIndex]. If turretUnit _thisTurret is null, calls WFBE_CO_FNC_CreateUnit and moves the unit in with moveInTurret. Recurses with [_turrets select (_i+1), _thisTurret, ...] to fill sub-turrets.

Note: private declaration at line 1 uses the array-string form (private ["_i", "_turrets", ...]), which is valid A2 OA syntax. The A3-only form to avoid is the inline typed assignment (private _var = value); that form is not present here.

Source: Common/Functions/Common_SpawnTurrets.sqf:1-21

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Artillery extended-mag equip

EquipArtillery

Registered at Common/Init/Init_Common.sqf:21. Called from RearmVehicle, RearmVehicleOA, Server_ProcessUpgrade.sqf, Client_BuildUnit.sqf, and Client_FNC_Special.sqf.

Signature

[_unit, _index, _side] Call EquipArtillery

Position	Parameter	Type	Notes
0	_unit	Object	The artillery vehicle
1	_index	Number	Artillery type index within WFBE_<SIDE>_ARTILLERY_EXTENDED_MAGS
2	_side	Side or String	Accepts either a SIDE value or a side text string ("WEST", "EAST", "GUER", "RESISTANCE")

Behavior (Common/Functions/Common_EquipArtillery.sqf:8-32)

1. Normalises _side to both a side text (for variable lookup) and a side value (for WFBE_CO_FNC_GetSideUpgrades).
2. Reads the extended ammo list: missionNamespace getVariable Format['WFBE_%1_ARTILLERY_EXTENDED_MAGS', _sideText] select _index.
3. If the list is empty, exits immediately.
4. Reads upgrade threshold list: WFBE_<SIDE>_ARTILLERY_EXTENDED_MAGS_UPGRADE select _index.
5. Gets current WFBE_UP_ARTYAMMO (index 17) upgrade level via WFBE_CO_FNC_GetSideUpgrades.
6. For each extended magazine whose threshold is met (_currentUpgrades >= threshold), calls _unit addMagazine.

Side text note: callers may pass either form. Client_BuildUnit.sqf:303 passes sideJoinedText (a string), while RearmVehicle passes a SIDE value. The normalisation block at lines 8–17 handles both.

Source: Common/Functions/Common_EquipArtillery.sqf:1-32

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ModifyVehicle — HandleDamage closures

Common_ModifyVehicle.sqf

Called at Common/Functions/Common_CreateVehicle.sqf:26 for every Tank or APC class vehicle immediately after createVehicle. Uses addEventHandler ["HandleDamage", ...] with an inline closure serialised via format ["_this Call %1", _rearmor].

Signature (called by Common_CreateVehicle)

[_vehicle] Call Compile preprocessFile "Common\Functions\Common_ModifyVehicle.sqf"

The file ends with processInitCommands at line 240; its return value is discarded by the caller. _vehicle is returned by Common_CreateVehicle.sqf (line 79), not by this file.

HandleDamage parameter layout (A2 OA standard): [unit, selection, damage, source, ammoClass, hitPointIndex, shooter, projectile]. The closures use _this select 4 for ammo class and _this select 2 for raw damage, then return (_dam/100) * (100 - _p).

Per-vehicle rearmour percentages

Vehicle class	SABOT (125/120mm)	HEAT / ATGM / RPG	AA cannon (20–40mm)
T72_RU	30%	20–23%	12%
T72_CDF	30%	20–23%	12%
T72_INS	30%	20–23%	12%
T72_TK_EP1	30%	20–23%	12%
T72_Gue	25%	20–23%	12%
T90	35%	23–33%	12%
All other APC/Tank	—	—	12%

Note on Sh_100_HEAT: despite its name, Sh_100_HEAT is treated at SABOT-level reduction — 30% for T72_RU/T72_CDF/T72_INS/T72_TK_EP1 (_p=30, line 26 et al.), 25% for T72_Gue (_p=25, line 163), and 35% for T90 (_p=35, line 200). It does not fall in the HEAT/ATGM/RPG (20–23%) column of the table above. The per-ammo class table below lists it separately at its correct value. Source: Common/Functions/Common_ModifyVehicle.sqf:26,60,94,128,163,200

The default branch (all other Tank/APC types) applies only 12% reduction against AA cannon rounds. Handgun, rifle, and HE infantry rounds are passed through at full damage (_result = _this select 2).

Ammo class coverage (T72_RU, lines 12–33 as representative):

Ammo class	Reduction
Sh_125_SABOT, Sh_120_SABOT	30%
Sh_100_HEAT	30%
R_SMAW_HEAA, R_MEEWS_HEAT, M_AT13_AT, M_TOW_AT, M_TOW2_AT, Sh_85_AP	23%
R_RPG18_AT, R_PG9_AT, R_PG7V_AT, R_PG7VL_AT, R_M136_AT, M_47_AT_EP1	20%
B_20mm_AA, B_23mm_AA, B_25mm_HE, B_25mm_HEI, B_30mm_AA, B_30mm_HE, Sh_40_HE	12%

Source: Common/Functions/Common_ModifyVehicle.sqf:5-240

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Common_ModifyAirVehicle.sqf

Registered but currently inactive: the call at Common/Functions/Common_CreateVehicle.sqf:29 is commented out. All cases apply 1% AA-missile damage reduction (M_R73_AA, M_Sidewinder_AA) and pass all other ammo through unchanged. The default branch (line 137) is a pass-through only. Marked //LoadoutManagerInsertChanges / //LoadoutManagerInsertChanges_END indicating it is generated by the LoadoutManager build tool.

Status: latent / disabled. Do not rely on air vehicle damage reduction being active.

Source: Common/Functions/Common_ModifyAirVehicle.sqf:1-154

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AddVehicleTexture — map-dependent texture init

Common_AddVehicleTexture.sqf

Called at Common/Functions/Common_CreateVehicle.sqf:32 for every created vehicle. Uses setVehicleInit with processinitcommands to apply textures globally. Returns _vehicle.

Signature

[_vehicle] Call Compile preprocessFile "Common\Functions\Common_AddVehicleTexture.sqf"

Map branch logic: IS_chernarus_map_dependent (true on Chernarus, false on desert maps) controls which texture variant is applied. Most cases use if (IS_chernarus_map_dependent) then {woodland textures} or if !(IS_chernarus_map_dependent) then {desert textures}.

Covered vehicle types and texture counts

Vehicle class	Texture slots	Map condition
M2A2_EP1	5 slots	Chernarus only (woodland)
M2A3_EP1	3 slots	Chernarus only
M6_EP1	4 slots	Chernarus only
M1128_MGS_EP1, M1129_MC_EP1, M1135_ATGMV_EP1, M1126_ICV_mk19_EP1, M1126_ICV_M2_EP1	2–3 slots	Chernarus only
HMMWV_M1151_M2_DES_EP1, HMMWV_M998A2_SOV_DES_EP1, HMMWV_M1035_DES_EP1, HMMWV_M998_crows_MK19_DES_EP1, HMMWV_M998_crows_M2_DES_EP1	2–4 slots	Chernarus only (converts desert HMMWV to woodland)
M113Ambul_TK_EP1, M113_TK_EP1	1 slot	Chernarus only
BTR60_TK_EP1, T34_TK_EP1	1–3 slots	Chernarus only
BVP1_TK_ACR	1 slot	Chernarus only
AAV, LAV25, BMP3, BTR90	2 slots	Desert only
2S6M_Tunguska	2 slots	Desert only
T90	3 slots	Desert only
Mi24_D_TK_EP1, Mi24_V, Mi24_P	2–3 slots	Desert only (insurgent camo)

Texture paths are relative to the mission root (e.g., Textures\base_co.paa) except Mi-24 variants which reference absolute \ca\ paths in the game installation.

Source: Common/Functions/Common_AddVehicleTexture.sqf:1-230

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Interaction map

Common_CreateVehicle.sqf
  ├── Common_ModifyVehicle.sqf    (Tank/APC only — HandleDamage closure)
  ├── [Common_ModifyAirVehicle.sqf]  (commented out)
  └── Common_AddVehicleTexture.sqf

Client_SupportRearm.sqf
  └── RearmVehicle  ──────────────────────────────────────────────────┐
                                                                       │
        Common_RearmVehicle.sqf (vanilla)        Common_RearmVehicleOA.sqf (OA, default)
          removeMagazine forEach                    setVehicleAmmo 0
          CfgVehicles MainTurret mags               GetVehicleTurretsGear
          setVehicleAmmo 1                            FindTurretsRecursive
          reload                                    SetTurretsMagazines
          IRS reset                                  driver [-1] turret mags
          EquipArtillery                            reload
          BalanceInit                               IRS reset
          CM/AA gating                              EquipArtillery
                                                    BalanceInit
                                                    CM/AA gating

---

Known issues

Issue	Location	Notes
Common_ModifyAirVehicle inactive	Common_CreateVehicle.sqf:29 (commented out)	Air vehicles receive no HandleDamage reduction. If re-enabled, the duplicate EH problem (multiple closures per vehicle on rearm) would emerge; ModifyVehicle has the same risk if CreateVehicle is called twice on the same object.
Vanilla rearm does not use turret paths	Common_RearmVehicle.sqf:11-14	Reads Turrets >> MainTurret >> Magazines from config only — multi-turret vehicles with sub-turrets get an incomplete reload on the vanilla path.
EquipLoadout dead	Client/Init/Init_Client.sqf:562	Call is commented out; function remains registered.

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Continue Reading

• Gear-Loadout-And-EASA-Atlas — architecture diagram showing where EquipUnit and EquipVehicle fit in the buy and respawn flows
• IRS-IR-Smoke-Missile-Countermeasure — wfbe_irs_flares variable and IRS module reset referenced in both RearmVehicle variants
• Upgrades-And-Research-Atlas — full WFBE_UP_* constant table and upgrade unlock flow that gates CM, AAM, and artillery ammo
• Artillery-Reference-Per-Faction — WFBE_WEST/EAST/GUER_ARTILLERY_EXTENDED_MAGS config and what EquipArtillery adds per upgrade tier
• Spawn-Primitive-Function-Reference — Common_CreateVehicle call contract and the full post-spawn init sequence