When you enter a game directly press select to see the scoreboard. If you're the first one there you're host. Also often the host is the only one with a 4 bar connection. Sometimes it's like you get blown up when infact the enemie was shooting at you. this happens to me quite alot and I would call that lag. Are you using armor when you're being shot at? If you feel you're being killed to fast that might be it.
Thanks - I'll check to see if I'm hosting.
Yeah, it's a bit like getting blown up out of the blue - I'll assume that's the lag then

I'm using my Armour (when I know I'm being shot at) ~ doesn't seem to do much (I guess that's because I've already taken hits due to the lag).
Chances are it's lag, as game has serious lag isssues. ...Short version, lag is killing this game.
Massive shame - hope they can fix it. I love everything about this game - except the lag

yup, lag's a fecker. Ive been shot around corners, ive been meleed by someone behind me facing other direction, and killed by someone shooting and not hitting me once.
i actually prefer the mp to the sp as i think the sp is shoddy for large portions of game, but if only theyd fix the lag.