Left4Dead looks great, but I must admit to a greater degree of appreciation for the same general scenario in the one Zombie mode in Call Of Duty World At War. The gameplay videos show what to me is a more natural pace of shuffling & movement (fire & movement?) for zombies compared to that of Left4Dead. The latter features speed more akin to me of apocalyptic mutants rather than zombies, and its nice to see that such a trait seems to be working from a game balance perspective.

That mode alone might be what attracts me to CoD World At War... at least enough to buy it. I don`t like the ability to utilize foreign nation/faction weaponry, perks or not. Just doesn`t feel right, and it makes it more difficult to tell friend from foe. Zombie mode though... .