Howdy. Wanna see what I bring to the party.... Its 22 years of gaming and also teaching game design at the collegiate level. My mother had an atari joystick up her womb for me, that was not a joke.
Anyways, I have the unique ability to memorize and analyze the other team. How many of each class, where they are, what they are doing and where they are going. Then I look at the make up of the team i'm on, and match our missing strength (class) to the weakness in the opponents team.....
You would have to see it to believe it, but the result is being taken to school.
1). single spy stalemate break by capping cp solo. 1 man beats 12 in 6 seconds, and watch 12 simultaneous f bombs hit the text box.
2) Single demo does not die once and completely crushes the Cart in goldrush, 8 domination, 0 deaths, 3 accusations of hacking....
3). Joining sniper to clear every sniper, on call (the sniping is to easy

Anyways theres more but i gtg. The ability to analyze, stratagize, and ultimately adapt to opponent to capitalize on their weaknesses, it what I believe makes a good TF 2 player.
LF any good clan!!