User blog comment:Argorrath/Activision confirms next Call of Duty for this year/@comment-2108119-20130210154658/@comment-173.58.94.78-20130211011856

A WW1 game would be quite simple,

Air Campaign: Fly Sopwith Camel, get shot down by the Red Baron, fly another Sopwith Camel, get shot down by the Red Baron again. Fly yet another Sopwith Camel, get shot down once more. Walk over to fly Sopwith Camel, find out Red Baron already blew it up.

Tank Campaign: Climb into tank, get blown up by enemy artillery. Rinse and Repeat.

Ground Campaign: Sit in trench for ten million years, go over top, die. Rinse and Repeat.

Sea Campaign: Board ship, then get sunk.