task: normal: skip sniper node if no sniper weapon.
task: normal: don't walk if there are no enemies left and they are using knives.
task: attack: get proper function if bots lose close node after attack task.
nav: unnecessary codes cleared.
combat: attack movements reviewed.
bot: enemy hearing is now better. (thanks for the @spodlesniy idea)
desire: increased desire to seek cover by distance. (made for zombie plague mod)
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Co-authored-by: jeefo <jeefo@rwsh.ru>
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