User blog comment:Argorrath/Treyarch releases a BO2 teaser video called "Origins" for DLC 4/@comment-67.169.165.224-20130808041420/@comment-24.14.168.185-20130808042607

Actually Treyarch porobably just changed the player models for them, since WaW, Dempey, Nikolai, and Takeo all used the same model as someone else, like Poloaski, Chernov, and a Japanese soldier.