Longer gameplay:
[M]http://youtu.be/_wmklRY2JXI[/M]
This is from the developer who made L4D2 for Valve apparently. It'll be interesting to see how balanced the game is because I imagine it'd be a bit of a challenge.
It looks like it could do a good job addressing one of the problems L4D has always had: Both teams get to work together, but one gets to hunt and fuck up the other? Thus, most players preferred to play the infected and poorly coordinated survivors ragequit all the time. With Evolve, you'll get that teamwork feeling from only one side, but the other side gets to enjoy a power trip while feeling ganged up on. Hopefully as the game matures and players get better, the reverse wont happen where most people don't want to get gangbanged by five other people. Hence, balancing this game is going to be ridiculously important for the longevity of the game.