You said it all

Confirmed! The same thing happened to me twice.

That's even weirder. No idea what that could be :(

No i don't think it's a corrupted save game, because it can be replicated through many different situations. I think it's simply that they just didn't consider you being able to damage more than one berserker at the same time. It's a huge oversight, really.

yea i ran into a lot of glitches in this game already. You gotta save often thats for sure and just execute the level differently to just play the game.

I'm playing on 360 and let me tell you this is a serious issue. For being a game geared toward hardcore gamers you'd think they would have been more hardcore with their bug fixes.

I have a strange bug: the game (original on Steam) freezes during a mission: no output and I must to restart the game. Are there solutions to fix this bug?

I'm experiencing the same damn bug!! On an important mission which took me more than a hour of sweat! What the hell is it? ... what I am hoping is that it is a bug, and not a corrupted savegame..

I was trying to iroman it but the glitches just made it unfair.

... it's the last élite muton of a streamline mission.. problem is that the bug occurs even if I don't kill the alien, but just pass the turn... it seems a scripted thing! No matter what I do (kill or not, in a way or another), at that turn the game is stucked.. O_O ..

I can tell you that the game feels a bit too short as well, I fully expect DLC with a huge amount of bug fixes to come out within the next month. Sad, but that's the gaming industry now-a-days. I can also tell you that the PC port of this game is quite lazy. Half the time the UI disappears when using the mouse to select actions.