The question is will you be able to play classic mode on the new Firefight map and the old ones?
I hope so that would be fun with the pistol!
Chances are, 343 will release “modded” gametypes for Firefight that will have the features added in the TU, such as the Über-Pistol.
That’s the only way that I can imagine them adding the Pistol into Firefight, at least.
Classic Mode on Firefight? As in old graphics? No, it is technologically impossible.
As for Anniversary gametypes, I’m not sure. They’re changed and added multiplayer gametypes before, but never Firefight…