You want to better your gameplay? Want to be chosen when a team is formed? The #1 way to better yourself for teamplay is to listen to the call! Whatever the caller tells you to do, do it and do it NOW. Don't think about how you may be killed, or don't move because you have to reload, or any other reason. This is by far the number one way to play yourself off the team. So please, above all else, listen to the call and pay attention during the match!