Team Fortress 2 is the sequel to the game that put class-based, multiplayer team warfare on the map. It delivers new gametypes, a signature art style powered by Valve's next generation animation technology, persistent player statistics, and more.
Things i noticed -
1) New Engineer shotgun with a PDA on it (maybe a shotsapper)
2) Mac Hat (for all MAC users)
3) The soldier having in his hand Engineers hat (all hats to all classes)
4) Trainig Models on the wall (training mode is being made for all classes still)
5) Dont know what else you might saw ...
Things i noticed -
1) New Engineer shotgun with a PDA on it (maybe a shotsapper)
2) Mac Hat (for all MAC users)
3) The soldier having in his hand Engineers hat (all hats to all classes)
4) Trainig Models on the wall (training mode is being made for all classes still)
5) Dont know what else you might saw ...
The shotgun is indeed new but the headphones are not hats they're misc. item so that you cna use hats with it.