KILLZONE 2
Everything that's on here (as far as I know) hasn't been confirmed
1) Co-Op play, offline and online
2) Rico's character model and voice gets changed slightly
3) 6-40 players online multiplayer
4) Lots of Urban levels
5) No tilt-sensing, unless like Resistance's tilt sensing
6) A secret level that has a picture of a Helghast holding the MC's bloody helmet ^_^
7) Vehicles like Resistance's excluding the Resistance tank (was too strong)
8 ) No colourful, hippie levels
9) The Helghast airmask to stop glowing orange because it makes them look like ducks to me 0_o
10) When bullets hit anything but an enemy to make bullet holes, not just glowing circles
That's all I suppose