Playstation 3New Killzone 2 beta video showing off the new classes, game modes, and gameplay almost 10 minutes long.
Facts from the vid:
Killzone two allows you to choose from 1-6 of the game Modes online and it will randomly select them in-game. Never coming out, its a great idea and gameplay swaps all the time - you'll be exploring the whole map each game, and the game has certain classes such as scout, medic, saboteur and loads more. You can also mix and match these classes to make your own by unlocking certain traits called "Badges".