Holy crap I remeber a weird moment, kind of a death. Well I died but... what ever.
It was Citadel Demo and it was 2 against 1, me and this other guy on our team. I had the bomb hiding in the office type place where the General is giving the orders in the single player cutsenes. I was just about to go and plant the bomb when my only other teamate comes over and kills me, he then takes the bomb and commits suicide by jumping over a ledge. This wasnt a mistake, he was just a total **** and I hope he burns in hell.
I just couldnt believe what I was seeing, the lone surviver of this was the only remaining enemy who must have had a laughing fit when he realised what had happened.