I agree that the game is excellent, but sometimes the the bugs really detract from the overall experience. On the whole, so far, I've found operation arrowhead to be far less buggy than Harvest red which, frankly, had me pulling my hair out in places.
Back onto the "open season" mission. So far, it's my favourite but the 45 min time limit is a problem. If they increased it to 1 hour that would help a bit!