Hello there,
I always thought that World at War can't allow player to stand on a moving surface like a zipline or anyrhing else, so the only solution was to stuck them in place on a script_origin with some script i assume. But recently i tried the "Black ops 2 [Town] (remake)" by IZaRTaX  and the map contain the Mob of the dead plane and we are allowed to move on it (despite the fact that we can't jump)
So i wanted to know how is it possible and/or how he did it ?

most of the time they just stopped you moving "on purpose" to stop people glitching - especially with lag switches

Take MOTD gondola as one example, people hit a lag switch and fall straight through it

If they are attached to a origin that is moving with said object, they cant get dropped

and you can also get stuck because of crappy waw collisions if you remember the first maps to include elevators you got stuck if you walked to the door while it was opening

All you have to do is stop the player from jumping on a moving surface. If it then moves in 90 degree movements, or just straight, it will be fine. Jumping though causes issues when going down or up, but I think there are ways to compensate for that too if someone really wants too.

I've made several elevators and I always stop jumping only cause it is a pain to deal with and you just shouldn't jump in an elevator. Its not safe.

I've done some test but is there a way to stop player from getting stuck in a moving wall because if a wall push the player it's fine but if the player try to walk into a moving wall he get stuck on it and/or block the whole platform and as i said in my first post the town remake by IZaRTaX did it well.