This isn't to be offensive: but it's kinda like 'once you know better, you're spoiled'.
TF2 is just a dumbed-down version of some badass mods from the Fortress Era of MOD'ing. Don't get me wrong, I like to bug EscapingJail to play Heavy so I can play Medic effectivly; and I just purchased Orange Box for PC to fiddle with the class updates on release - it's just hard to explain.
'Weapons Factory' series seriously needs to see light again.
Regardless, I'm up for games sometime. I play a good Medic and Spy; Engy and Scout when needed.