Zeta Cargo Sling Load Reference

Zeta Cargo Sling-Load 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.

ZetaCargo is the airlift module labelled "Zeta Cargo by Benny" in its init file and compiled from client init (Client/Module/ZetaCargo/Zeta_Init.sqf:1; Client/Init/Init_Client.sqf:551-552). The live action grant checks Zeta_Lifter plus WFBE_UP_AIRLIFT, then adds Client\Module\ZetaCargo\Zeta_Hook.sqf as the localized lift action (Common/Init/Init_Unit.sqf:51-53). The hook path attaches one nearby unmanned land vehicle to the lifter (Client/Module/ZetaCargo/Zeta_Hook.sqf:15-17,28,30), while the manual detach path is currently partial because Zeta_Hook.sqf adds the detach action without an argument payload and Zeta_Unhook.sqf expects _this select 3 select 0 to be the lifted vehicle (Client/Module/ZetaCargo/Zeta_Hook.sqf:34; Client/Module/ZetaCargo/Zeta_Unhook.sqf:3-7).

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Boot and Upgrade Gate

Surface	Current source behavior	Source
Client init	The client compiles/runs Client\Module\ZetaCargo\Zeta_Init.sqf from the Zeta Cargo Lifter block.	Client/Init/Init_Client.sqf:551-552
Upgrade index	WFBE_UP_AIRLIFT is upgrade index 8.	Common/Init/Init_CommonConstants.sqf:45
Action grant	During unit initialization, _unit_kind must be present in Zeta_Lifter, and _upgrades select WFBE_UP_AIRLIFT must be greater than 0, before the unit receives the localized STR_WF_Lift addAction to Client\Module\ZetaCargo\Zeta_Hook.sqf.	Common/Init/Init_Unit.sqf:51-53
Purchase-list color	The buy-list filler reads _UpAirlift from WFBE_UP_AIRLIFT and colors rows only when the unit is also in side-specific WFBE_%1LIFTVEHICLE. This is UI marking, not the runtime attach-action gate.	Client/Functions/Client_UIFillListBuyUnits.sqf:21,78-82; Common/Init/Init_Unit.sqf:51-53
Buy-menu hint	The buy menu shows the lift-capable hint for non-supply-heli units found in side-specific WFBE_%1LIFTVEHICLE.	Client/GUI/GUI_Menu_BuyUnits.sqf:486-487
Upgrade label	The upgrade label is localized as STR_WF_UPGRADE_Airlift; its description says the upgrade unlocks airlifting.	Common/Config/Core_Upgrades/Labels_Upgrades.sqf:63,89; stringtable.xml:3836-3841,4045-4050

Airlift Upgrade Values

The checked Chernarus core upgrade files use the same Airlift shape: enabled, cost [[1000,0]], one level, dependency [[WFBE_UP_AIR,1]], and research time [30].

Upgrade family	Enabled	Cost	Levels	Dependency	Time
CombinedOps US	true	[[1000,0]]	1	[[WFBE_UP_AIR,1]]	[30]
CombinedOps RU	true	[[1000,0]]	1	[[WFBE_UP_AIR,1]]	[30]
Other Chernarus upgrade files	Same Airlift rows and line positions across Upgrades_CO_GUE.sqf, Upgrades_USMC.sqf, Upgrades_RU.sqf, Upgrades_CDF.sqf, Upgrades_GUE.sqf, Upgrades_INS.sqf, Upgrades_OA_US.sqf, Upgrades_OA_TKA.sqf, and Upgrades_OA_TKGUE.sqf.	Same	Same	Same	Same

Sources: Common/Config/Core_Upgrades/Upgrades_CO_US.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_CO_RU.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_CO_GUE.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_USMC.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_RU.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_CDF.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_GUE.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_INS.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_OA_US.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_OA_TKA.sqf:14,40,67,98,129; Common/Config/Core_Upgrades/Upgrades_OA_TKGUE.sqf:14,40,67,98,129.

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Runtime Lifter Allow-List

Zeta_Lifter is the runtime list used by Init_Unit.sqf before adding the attach action.

Classname	Source
MH60S	Client/Module/ZetaCargo/Zeta_Init.sqf:4
MV22	Client/Module/ZetaCargo/Zeta_Init.sqf:4
C130J	Client/Module/ZetaCargo/Zeta_Init.sqf:4
Mi17_Ins	Client/Module/ZetaCargo/Zeta_Init.sqf:4
Mi17_medevac_RU	Client/Module/ZetaCargo/Zeta_Init.sqf:4
UH60M_EP1	Client/Module/ZetaCargo/Zeta_Init.sqf:4
UH60M_MEV_EP1	Client/Module/ZetaCargo/Zeta_Init.sqf:4
CH_47F_EP1	Client/Module/ZetaCargo/Zeta_Init.sqf:4
C130J_US_EP1	Client/Module/ZetaCargo/Zeta_Init.sqf:4
Mi17_TK_EP1	Client/Module/ZetaCargo/Zeta_Init.sqf:4
BAF_Merlin_HC3_D	Client/Module/ZetaCargo/Zeta_Init.sqf:4
CH_47F_BAF	Client/Module/ZetaCargo/Zeta_Init.sqf:4
Mi17_Civilian	Client/Module/ZetaCargo/Zeta_Init.sqf:4
An2_TK_EP1	Client/Module/ZetaCargo/Zeta_Init.sqf:4

Side UI Lift Lists

Side root files set WFBE_%1LIFTVEHICLE lists for UI coloring and buy-menu hints. These lists are narrower than the runtime Zeta_Lifter allow-list and are not what Init_Unit.sqf checks when adding the attach action.

Root file	UI-marked lift vehicle classes	Source
Root_US.sqf	MH60S, MV22, C130J, UH60M_EP1, UH60M_MEV_EP1, CH_47F_EP1, C130J_US_EP1, BAF_Merlin_HC3_D, CH_47F_BAF, Mi17_Civilian	Common/Config/Core_Root/Root_US.sqf:23
Root_US_Camo.sqf	MH60S, MV22, C130J, UH60M_EP1, UH60M_MEV_EP1, CH_47F_EP1, C130J_US_EP1, BAF_Merlin_HC3_D, CH_47F_BAF, Mi17_Civilian	Common/Config/Core_Root/Root_US_Camo.sqf:23
Root_USMC.sqf	MH60S, MV22, C130J, UH60M_EP1, UH60M_MEV_EP1, CH_47F_EP1, C130J_US_EP1, BAF_Merlin_HC3_D, CH_47F_BAF, Mi17_Civilian	Common/Config/Core_Root/Root_USMC.sqf:22
Root_RU.sqf	Mi17_Ins, Mi17_medevac_RU, Mi17_TK_EP1	Common/Config/Core_Root/Root_RU.sqf:21
Root_TKA.sqf	Mi17_Ins, Mi17_medevac_RU, Mi17_TK_EP1	Common/Config/Core_Root/Root_TKA.sqf:21

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Hook Search and Attach Flow

Step	Current behavior	Source
Caller gate	The attach script exits unless the action caller is the driver of the lifter.	Client/Module/ZetaCargo/Zeta_Hook.sqf:3-9
Speed/altitude gate	C130J and C130J_US_EP1 exit above speed 20; other lifters exit above speed 20 or below altitude 2.	Client/Module/ZetaCargo/Zeta_Hook.sqf:10-13; Client/Module/ZetaCargo/Zeta_Init.sqf:11
Target search	The live hook searches nearObjects ["LandVehicle", 10] and exits when none are found.	Client/Module/ZetaCargo/Zeta_Hook.sqf:15-17
Closest target	The nearest searched vehicle is selected through WFBE_CO_FNC_GetClosestEntity.	Client/Module/ZetaCargo/Zeta_Hook.sqf:19
Enemy HQ wreck guard	WEST callers cannot airlift dead EAST HQ wreck classes BTR90_HQ, BMP2_HQ_TK_EP1, BMP2_HQ_INS; EAST callers cannot airlift dead WEST HQ wreck classes LAV25_HQ, M1130_CV_EP1, BMP2_HQ_CDF.	Client/Module/ZetaCargo/Zeta_Hook.sqf:6-7,21-22
Manned target guard	Any target with crew exits with localized STR_WF_INFO_Hook_Manned.	Client/Module/ZetaCargo/Zeta_Hook.sqf:28; stringtable.xml:849-855
Offset selection	Default attach offset is [0,0,-10]; C130J and C130J_US_EP1 use special offset [0,0,-2].	Client/Module/ZetaCargo/Zeta_Init.sqf:8,11-12; Client/Module/ZetaCargo/Zeta_Hook.sqf:23-26
Attach and state	The target is attached to the lifter, and the lifter receives local variable Attached = true.	Client/Module/ZetaCargo/Zeta_Hook.sqf:30-31
Action swap	The attach action is removed, then a localized STR_WF_Lift_Detach action is added for Client\Module\ZetaCargo\Zeta_Unhook.sqf.	Client/Module/ZetaCargo/Zeta_Hook.sqf:32-34; stringtable.xml:4437-4449
Monitor loop	While the game is not over, the hook loop sleeps 2 seconds and detaches automatically if lifter damage is above 0.3, Attached is false, or the lifter no longer has a driver.	Client/Module/ZetaCargo/Zeta_Hook.sqf:36-43

Zeta_Types declares Car, Motorcycle, Tank, and Ship, but the current hook search above is the LandVehicle near-object query. Treat Zeta_Types as module configuration, not proof that ships are reachable through the live attach action. Sources: Client/Module/ZetaCargo/Zeta_Init.sqf:5-6; Client/Module/ZetaCargo/Zeta_Hook.sqf:15-17.

Detach Path Status

Path	Current behavior	Source
Manual detach action	The detach action is added without an argument payload.	Client/Module/ZetaCargo/Zeta_Hook.sqf:34
Unhook expectation	Zeta_Unhook.sqf expects _this select 3, then reads _param select 0 as the lifted vehicle.	Client/Module/ZetaCargo/Zeta_Unhook.sqf:3-7
Unhook state	If a lifted vehicle is supplied, the script sets Attached = false, detaches the vehicle, applies lifter velocity, removes the detach action, waits 1 second, and clamps below-ground drops back to Z 0 with downward velocity -0.1.	Client/Module/ZetaCargo/Zeta_Unhook.sqf:9-20
C-130 drop position	For special lifters, the unhook path moves the lifted vehicle 15 meters behind the lifter's position using getDir _vehicle, then keeps the lifter's current Z position.	Client/Module/ZetaCargo/Zeta_Unhook.sqf:11-13
Automatic detach	The hook loop can still detach without calling Zeta_Unhook.sqf when damage, missing driver, or Attached = false ends the loop.	Client/Module/ZetaCargo/Zeta_Hook.sqf:36-43

Patch caution: the page documents stable master, not a tested in-game fix. A future code change should either pass [_vehicle] when adding the detach action or make Zeta_Unhook.sqf recover the attached object safely, then smoke attach/manual-detach/auto-detach for a normal helicopter and a C-130 variant.

Continue Reading

Module gateway: Modules atlas | Support surface: Support specials and tactical modules | Upgrade catalog: Upgrade research cross-faction reference | Gear/cargo caveat: Vehicle cargo equip loop bounds