i cant get any Z coordinates to work for me

[voodoo721]

I used glitchyguardians programs to edit the spawn points,and i tried to do it so you respawn on top of terminal, out of bounds on backwash, and ontop of the tower on relic, but for each one, whenever you are supposed to respawn there, you respawn too high and you cant move or shoot or see the level at all.
For Terminal, when i changed it to 15 or something, it was too low, and i fell and was killed by the gaurdians, so i think that one would be easy to fix.

But for Backwash, I had the Z Coordinate at 4, and it still didnt work.

Can someone help me in anyway?