You get to use the dogs optioin after you get a 7 kill streak in an online game only.
Japanese and the Russians
The japanese imperial army
no
The Imperial Army
yes, they are called "Hellhounds"
there is a mission in call of duty world at war where you have to fight at sea against the Japanese
Call of Duty 4: 7 kill streak: Attack Helicopter Call of Duty World at War: 7 Kill streak: Attack dogs Call of Duty Modern Warfare 2: 25 kill streak: Tactical Nuke Call of Duty Black Ops: 11 kill streak: Gunship or attack dogs.
The Axis teams are the Germans in Russia and the Japanese in Japan.
The Rising Sun.
Yes, world at war a lot more bloodier, you can blow off limbs in world at war and the Japanese were very brutal soldiers.
The call of duty world at war is not a prequel to call of duty black opst.
No, but Call of Duty: World at War is.