Activision has confirmed the newest instalment in the Call of Duty series will feature an online co-op mode for up to four players.
That goes for the Xbox 360, PS3 or PC versions, which will also offer two-player split-screen co-op. The Wii game will have its own "unique" two-player co-op mode.
According to the press release, the co-op campaign "allows players to rank up and unlock perks in competitive multiplayer by completing challenges and earning experience points".
Said experience points are collected whenever you're playing online, whether competitively or co-operatively. The game's difficulty level will "scale dynamically" according to your experience rank and the ranks of the people you're playing with.
Playing as a US marine or Russian soldier, you'll get to fight it out on battlegrounds in Europe and the South Pacific. And it's been confirmed you'll get to muck about with a flamethrower.
Call of Duty: World of War will be out in the autumn. Look out for a full preview soon.