ok ive been playing with the sbsp collision and mesh, and found out some verts can be moved, without ruin the map. Yet others break collision.
for example flip the whole bsp moves the coll to far and breaks it.
So if i flip it move it back, then flip just the floor,and moved it where i want would it work?
Or what if i took say a pallet and swapped its collision for an extracted piece of foundations visual mesh saved as an .obj would this work?
if it does work at all, ill post results.
P.S. I have sucessfully edited the sbsp coll on headlong, and coag.
So far very small edits like invisible steps to get to ledges.
And holes in walls i can go thru without dying if your slightly faster then normal ruing speed.
If anyone is still working on editing bsp's please make your findings known
and together we might figure this out.