HaloMods "Classic" Read-only Archive

Ok so i been working on this but im pretty new to modding, and could use some help.
What ive done is flipped foundation map, (BSP,and Mesh) with BSP Master.
Relocated all spawns, and changed the z coordinates for top and bottom of bsp.
The bottom side of this map looks as fun to plat on as the top.
The problem is i fall through the map. I tried just flipping the mesh, but i need to lower, and change it to match the collision.
Can anyone help pls. Sorry if this is in the wrong place.

um you could try and opening the collision .OBJ file in milkshape or some other modeling program and turn it upside down along with the bsp of the map that might work..

i started this exact mod nearly a year ago with bsp master came out >_>

and i think i know how to fix the collision, although i could be wrong....but im currently writing an app to do it cause its a long proccess, but i havent done any work on it in a while...

Im glad im not the only one interested in doing this mod, tombstones bottom side is the other one im working on. Good luck on the app. ill be first in line d/l