@KaneRobot: You must just have bad luck then. From what I've noticed, unless you're in a squad with some other people who will communicate, winning and losing is just luck of the draw. Sometimes you'll get teams that seem to do awesome, and then you'll get teams that seem to completely suck. Unfortunately for you, you seem to be getting the crappy teams over and over.
Is it possible that maybe there's a factor in how you're playing the game that could be contributing to your team losing? I know it's easy to blame the rest of the team for a loss when you feel you've done something at least (I know I do that from time to time), but sometimes we are actually the ones screwing up our team. It might not be the case, but it's something to think about at least.
@MillerTime2523:
1.) Don't snipe. The game has enough people trying to do so as it is, and most people aren't good enough to really do anything worthwhile when trying to snipe.
2.) Make liberal use of your class' gadgets. If you see a sniper, throw an ammo box beside him. If you see a teammate go down, use your defib paddles on him; defibbing a teammate alone is worth just as much as killing someone. The more you help your team by replenishing ammo, spotting, healing, etc., the faster you'll get points. Don't focus strictly on killing like a decent amount of people do. I've played about 75 rounds so far, and have had the top score out of everyone about 15 of those times--roughly 1 out of every 5 rounds. I'm not saying I'm godly at this game; the reason I get tons and tons of points is because I focus on helping teammates and deliberately working towards the main objective. Sure, some of it comes down to skill, but being a good teammate goes a long way in this game.
3.) Watch the "How not to be a noob at Bad Co. 2" video that's been put up a few times in this thread. You can find it on youtube. There are a lot of great tips in there for everyone.