I missed these times when COD World at war and Black ops 1 was still happening. When you get the game over scene. You here the Easter egg song hinted to the next zombie map. The rest of the Black ops games doesn't make sense at all. It's ashame they don't keep the tone what World at war and Black ops 1 did.
I believe in my opinion that 115 instrumental for Der Riese goes harder. 2:02 Same with Ascension they both go hard. But Ascension is one of my favourites. 2:25