I suck, I've played like ten online matches, haven't had the game for about a year, just got it back about five minutes ago.

Any real tips/ways to get decent ?

This game has gone to shit with all the glitches and shit. But at one point was fun as hell.

Wait for Gears of war 2 which comes out in 3 weeks lol.

Well, I was just trying to get the achievements, and get used to the online.