Give Cybran Carrier impact effects for its increased splash

[lL1l1]

Description of the proposed changes

Gives Cybran carrier the impact effect of the SAM since it now has splash damage from #7055.
The guns are changed to fire 1 projectile per fire to reduce the brightness of the new effect since 4 projectiles (from 4 guns) was overwhelmingly bright.

I considered giving it the flak impact effect but that effect matches worse with the damage radius of the weapon.

Testing done on the proposed changes

Visual inspection firing at some spy planes.

Cyb.carrier.impact.effect.mp4

Checklist

- [ ] Changes are annotated, including comments where useful

• Changes are documented in a changelog snippet according to the guidelines.
• Request 2-3 reviewers from the list of reviewers and their areas of knowledge.

Summary by CodeRabbit

• Balance Changes

  • Anti-air "Electron Autocannon" weapons now deliver significantly increased damage output against aerial targets
  • Projectile effects updated with new visual scaling parameters and impact templates

• Chores

  • Changelog updated to reflect balance adjustments

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: acf4ebf4-b2b1-4964-9f4e-a04ab4b1faf3

📥 Commits

Reviewing files that changed from the base of the PR and between 03ece2f and db238e4.

📒 Files selected for processing (1)

• changelog/snippets/balance.7055.md

📝 Walkthrough

Walkthrough

This PR balances the URS0303 unit's anti-air weapon capabilities by quadrupling damage output from 20 to 80 per hit across all four Electron Autocannon hardpoints, restructuring their firing patterns through granular RackBones configuration, and configuring the projectile effects to scale air-unit impacts appropriately.

Changes

Anti-Air Weapon Balancing

Layer / File(s)	Summary
Projectile Effects Configuration projectiles/CAAAutocannon03/CAAAutocannon03_script.lua	CAAAutocannon03 projectile class now imports EffectTemplate and configures FxAirUnitHitScale = 1.5 and FxImpactAirUnit = EffectTemplate.CNanoDartUnitHit01 for air-unit impacts.
Weapon Damage Increases units/URS0303/URS0303_unit.bp	All four Electron Autocannon hardpoints (AAGun01–AAGun04) have Damage increased from 20 to 80.
Weapon Rack Restructuring units/URS0303/URS0303_unit.bp	For each AA gun, RackBones is split into separate blocks per muzzle bone (Front_Right_AA_Muzzle_*, Back_Right_AA_Muzzle_*, Back_Left_AA_Muzzle_*, Front_Left_AA_Muzzle_*) while retaining the same RackBone target.
Changelog Documentation changelog/snippets/balance.7055.md	Header updated to reference both #7055 and #7109.

Estimated code review effort

🎯 2 (Simple) | ⏱️ ~12 minutes

Possibly related PRs

• FAForever/fa#7055: Related balance changes to the same URS0303 AA weapons, adding DamageRadius fields while this PR adjusts Damage values and firing patterns.

Suggested labels

area: balance, area: sim

Suggested reviewers

• BlackYps
• Basilisk3
• Rhaelya

Poem

🐰 Four cannons roar with might anew,
From twenty damage up to eighty too!
The rabbit fires from every muzzle bone,
With impact FX that shakes the zone—
AA balance blooms, the damage done!

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title accurately describes the main change: adding impact effects to the Cybran Carrier for its increased splash damage. It is concise, specific, and clearly summarizes the primary objective of the pull request.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Linked Issues check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check	✅ Passed	Check skipped because no linked issues were found for this pull request.
Description check	✅ Passed	The PR description includes a clear explanation of changes, testing performed with visual evidence, and checklist items completed. However, it does not explicitly reference the issue number(s) being addressed.

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✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests

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[Rhaelya]

Everything works as intended.