Reduce sniper speed and increase range

[lL1l1]

Description of the proposed changes

• Reduce sniper bot speed so that they can't kite GC/Ythotha/Monkeylord, as otherwise they have no lategame counter for Aeon/Sera. This also makes them weaker against T3 since its harder to escape a micro mistake.
• Add 5 range to compensate the speed nerf.

Some considerations of the effects of these changes:

• Reaction time for starting kiting is higher with more range, but kiting in general is worse with less speed.
• More units/HP is needed to walk into range of an idle sniper army due to higher range.
• Ythotha and GC had a somewhat small range gap previously, so +5 range increase to that small gap is a big difference, especially for Seraphim sniper in normal mode. Ythotha 47 range vs 55/60/65 = 8/13/18 gap -> 13 (+62.5%)/18/23 gap. GC 40 range so 15/20/25 gap -> 20/25/30 gap
• Megalith gets outranged by 1 -> 6 by Seraphim snipers in sniper mode, but Seraphim snipers are 0.3 slower so mega catches up in only 20s, which means that the snipers can get only 2 shots off before they start getting shot at with high range high damage splash.

Testing done on the proposed changes

To be tested on develop/beta.

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
  • Reduced mobility for T3 sniper bots by lowering movement/tuning speeds (including standard and sniper-mode movement).
  • Increased engagement range to compensate, expanding weapon effectiveness for both standard and sniper firing modes across the affected variants.
• Chores
  • Removed leftover placeholder content from an empty changelog snippet entry.

[coderabbitai]

📝 Walkthrough

Walkthrough

This PR reduces movement speeds for XAL0305 and XSL0305, adjusts XSL0305 sniper-mode movement, and increases weapon ranges. It adds a balance changelog entry and removes a stale placeholder snippet.

Changes

T3 Sniper Bot Balance Adjustment

Layer / File(s)	Summary
XAL0305 movement and weapon range tuning units/XAL0305/XAL0305_unit.bp	MaxAcceleration, MaxBrake, and MaxSpeed are reduced from 2.5 to 2.3; main weapon MaxRadius increases from 60 to 65.
XSL0305 movement and weapon range tuning units/XSL0305/XSL0305_unit.bp	Physics values are reduced from 2.3 to 2.2, SniperModeSpeedMultiplier changes to 0.879, and weapon ranges increase to 60 and 70.
Changelog documentation update changelog/snippets/balance.7167.md, changelog/snippets/category.7158.md	Adds the balance entry and removes the stale placeholder snippet.

Estimated code review effort: 1 (Trivial) | ~5 minutes

Possibly related PRs

• FAForever/fa#7142: Modifies the same T3 sniper bot blueprints and tuning values.
• FAForever/fa#7158: Edits the same sniper-bot blueprint parameters with opposite tuning changes.

Suggested reviewers: Rhaelya, BlackYps

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Title check	✅ Passed	The title clearly summarizes the main change: reducing sniper speed and increasing range.
Description check	✅ Passed	The description matches the template well, with proposed changes, testing, and checklist covered.
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.

✨ Finishing Touches

🧪 Generate unit tests (beta)

• Create PR with unit tests
• Commit unit tests in branch balance/sniper-speed

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[Rhaelya]

Looks good to me

[coderabbitai]

Actionable comments posted: 1

🤖 Prompt for all review comments with AI agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

Inline comments:
In `@changelog/snippets/balance.7167.md`:
- Line 12: Update the Snipe mode speed entry in the changelog to document the
corrected Usha-Ah sniper-mode value of approximately 1.93, replacing the
inaccurate 1.7 value while preserving the existing before-value and formatting.

🪄 Autofix (Beta)

Fix all unresolved CodeRabbit comments on this PR:

• Push a commit to this branch (recommended)
• Create a new PR with the fixes

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

Plan: Pro

Run ID: 8ad48d7e-add3-43b0-84a0-a64cf9b1de15

📥 Commits

Reviewing files that changed from the base of the PR and between 6be5a45 and 28890ff.

📒 Files selected for processing (1)

• changelog/snippets/balance.7167.md

[coderabbitai]

🎯 Functional Correctness | 🟡 Minor | ⚡ Quick win

Correct the documented Usha-Ah sniper-mode speed.

The entry says 1.74 -> 1.7, but the supplied XSL0305 configuration uses MaxSpeed = 2.2 and SniperModeSpeedMultiplier = 0.879, yielding approximately 1.93. Update this value to match the actual blueprint change.

🤖 Prompt for AI Agents

Verify each finding against current code. Fix only still-valid issues, skip the
rest with a brief reason, keep changes minimal, and validate.

In `@changelog/snippets/balance.7167.md` at line 12, Update the Snipe mode speed
entry in the changelog to document the corrected Usha-Ah sniper-mode value of
approximately 1.93, replacing the inaccurate 1.7 value while preserving the
existing before-value and formatting.