Honestly, I am always trying to be a teammate. I like to support others and constantly watch the maps and team deployment. Unfortunately, this usually leads to me trying to reenforce two tanks trying to hold an entire side of the map when everyone lemmings the other way. I like working with others, and don't really mind losing if I've been able to do my part. I can get pretty frustrating if you're on one of those streaks where everything seems to go against you, but it's just a game. I just try to enjoy it.
I really love it when I have either a great gun, or great armor, and am able to pin down an entire enemy push. I love suppressing the rush and tangling them up, especially when teammates realize it and flank while I keep them occupied. I don't even care if I get any kills. I like the teamwork. I've never suicided (well, not on purpose anyway), and have no idea why people do it.
If I can EVER find someone that would platoon with me, my expectations are few but specific. I want to have fun, and I want to learn. That's it!