Add crash fix, minor polish to volkov-n-chitzkoi

[JovialFeline]

This fixes a crash reported by DMTM. Some other light touches are added as well.

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• Fixed rally points being set for dead War Factories.
• Fixed the Ranger at the start guarding its territory from downed aircraft, rather than just infantry.
• Changed two proximity hunt triggers so they can't linger if that hunter is dead.
• Added a death check for a barrel targeted by soldiers, just in case.
• Fixed Volkov's hand cannon dealing no damage to Cruisers, despite them being targetable.
• Fixed prerequisites blocking Cruisers from being built.
• Fixed each Cruiser's death queuing two replacements on Hard difficulty.
• Fixed a tiny translation typo.

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Civilian reinforcements in the village will now scatter before hunting. This avoids some visual weirdness.

Civilians_WithoutScatter.mp4

Civilians_Scatter.mp4

[abcdefg30]

Changelog