Player and HoldType Animations

I was thinking over it a while ago. I’m not exactly sure of how animations are handled and how they work, but I was wondering if it would be a chore of replacing the current animations with Garry’s Mod 12 ones and also whether they are handled client side or server side? Thanks.

Shared, they have to be networked. GMod12 didn’t have different animations, it used HL2DM just like it does now.

So am I able to swap them over in a gamemode?