IN campaign, mission Win->Moral Stability (dono real name, "моральная устойчивость" in russian ver). After tank on crossroad was destroyed I found 2 enemy bots constantly repeat "Target that MRAP", until they are need to say something else. After they said that they need, they're continue to repeat "Target that MRAP". Also they're doing anything they need (walking, shooting, changing stance, etc.).
With reloading auto-gamesave after death the problem stays, but I was not smart enough to back up that save :(