How do you guys do that skip in the beginig of the map?

it is possible on any map from any wall you can crouch behind.

The idea is: spam 'crouch behind wall' and 'go prone' after eachother. I think that when both actions overlap the game does not know where to put you and just put you at a default value. This default value is not necessarily in the middle of the map, this is different from map to map, most maps put you out of bounds so its not use-able. So far only the museum has a usefull warp.

In the flak tower you get REALLY close under valid ground but i have not been able to find a way to gain a tiny bit of height, cuz if you can you can actually clip back inbounds. Sadly this is not possible yet

we do have a discord if you want to join