I was in the same position as you. Just be aware that there is a lot of random crap in Modern Warfare 2 so you will have bad games where you just get hit by every Predator Missile/Grenade Launcher in existence.
Very good tips here, especially the last one. I cannot stress how annoying it is when players on my team are completely unaware of what's going on around them, and instead of turning around to shoot someone appearing on the radar, they just stand there like a lemon.
Also, one last one that no one seems to mention. For the love of god, don't just watch the same angle as your teammates; having four guys watching the same corridor means that a) you're less likely to get a kill yourself b) more likely to get surrounded by the enemy team and c) more likely to be the victim of a multikill. If your team are watching one area, cover the back or the side, spread out a little. Don't go all rambo though.
Very good tips here, especially the last one. I cannot stress how annoying it is when players on my team are completely unaware of what's going on around them, and instead of turning around to shoot someone appearing on the radar, they just stand there like a lemon.
Also, one last one that no one seems to mention. For the love of god, don't just watch the same angle as your teammates; having four guys watching the same corridor means that a) you're less likely to get a kill yourself b) more likely to get surrounded by the enemy team and c) more likely to be the victim of a multikill. If your team are watching one area, cover the back or the side, spread out a little. Don't go all rambo though.