Textures could use some work, some things looks really stretched out and out of place, but idk if you care the much about aesthetics. Also it is really dark, I had to play with fullbright. I found some jumps to be pretty tedious, just a bunch of floor pogo or whatnot, but if that's what you wanted then that's fine. Also, for non-stick walls please use func_clip_vphysics or something that doesn't wallbug randomly.