I actually managed to knife a few people, but usually only when I snuck up behind them when they were sniping 🙂
I did run into a guy going through a door and in my confusion hit RS, B *and* RB. Needless to say I died.
It took an age to get into any game though which was a pain, but we played Scrapyard twice, rundown (where I did quite good, without even camping too much!), Favela, and Highrise.
Odd thing was, we were in a party before, then I left I think when we had trouble joining a game, and I got into a game and he joined my session but I think we still had party chat – our voice indicators didn’t light up and I didn’t hear anyone else on our team.
I thought that party chat wasn’t allowed in Mercenary deathmatch?