So I figured out how to decompile c_animations and compile. This was requested to be fixed a while back so I fixed the Shotgun sounds along with the Bison at 70 FOV. The Heavy animations contain a Shotgun model that you don't need to install, that just fixes the Shell ejector. You can install a different Shotgun mod but beware of bugs!
This works with All Models and Re-models
This will not work with custom animations of Heavy and Soldier.