TF2 improved TFC cause it got tiring airshotting all those Conc jumping scouts.
plus TFC is more quake style while TF2 has a more balanced gameplay
Tell that to the qq'ing people getting blasted by the liberty launcher, bazaar bargain, tomislav, and soda popper.
I liked both games equally. Also TFC is more skill based and about how fast you could press the grenade key. TF2 use to be a game that anyone could pick up and play. TFC has also lasted a long time and is still played by a few people. Also if you want to play a game like the quake like Team Fortress then look up Fortress Forever. Otherwise stick to that hat collector. Also come to think of it why isn't tfc free, its not people still play.