Can play 2 players on Call of Duty World at War?

Answer 1

If you want to play against each other go to multiplayer and then click split screen but if you want to complete the campaign together click into co-operative and then split screen. From here you choose which mission you would like to play including the zombie missions.

Answer 2

Yes you can if you don't have the Call of Duty World at War Final Fronts PS2 game

from related link. "The game also features a cooperative gameplay mode with up to two players via split screen on consoles, or four players online, for the first time in the franchise. The Wii version of the game does not include online co-op, but two players can play through a "squadmate co-op" mode which allows both players to experience the game through the same screen and point of view."