A slew of Call of Duty World at War details have dropped, and some of the innovation in the fifth installment of the war/shooter look pretty amazing. Here's what we know:

• World War II's "South Pacific and European theaters"
• Co-Op gameplay
• Flamethrowers
• Uses the Call of Duty 4: Modern Warfare engine

Some details on the Co-op:  Up to four-players can play online for Xbox 360, PS3 and PC, or two-player local split-screen on consoles. Nintendo Wii will also support a unique co-op mode for two players. The co-op campaign allows players to rank up and unlock perks in competitive multiplayer by completing challenges and earning experience points, adding continuous re-playability and team-based gameplay. Whether playing competitively or cooperatively – if players are online with Call of Duty: World at War – they will always gain experience points. Based on a player’s experience rank and rank of the player’s friends, Call of Duty: World at War will scale dynamically to provide a deeper level of challenge.

It will come out in 2009 for the Nintendo DS,  PC, PlayStation 2, PlayStation 3, and Xbox 360.

Be sure to check out the new screenshot gallery and brand new trailer.