So I've been making this map over the past year and it's going pretty well, except for a few huge errors that I have no idea how to fix. The first issue i'm having is that when I spawn into the game, I have no starting pistol or knife. I tried to buy a weapon off of the wall, and still nothing. I have absolutely no idea how to fix this. I could reinstall the mod tools, but my files would stop working because I've had to edit some code to get my map to even launch.

My second problem is textures/lighting. When I buy perks, I have a weird red texture on the perks, and in some rooms, the ceiling has the same red texture. I'll provide pictures. I really need some help here, please and thanks.

Non existing weapons:
https://gyazo.com/c80958b187cf7dae9d61135d10696203
https://gyazo.com/2aaf1c124931ed6c4384ec359b4fc235

Red ceilings:
https://gyazo.com/aa38bc8057c4b4267cc6b5e6ab0accb4
https://gyazo.com/d91e409eafdaaa8d06dc824255ac7f85

Red perks:
https://gyazo.com/de7143471ae11d9d2e034672569ce4e7
https://gyazo.com/3d97f537bd4b2ff645a65667c6776468

I fixed the red textures, but I still have no guns. I found that post you were talking about, but it didn't help. I might need to reinstall the mod tools, but it will break the map. I won't be able to launch it.

Zone_source/dlc3.csv

This is where the waw guns "should" be

If they are not there, or are commented, that's your issue

Replace that file with a original from the mod tools download or get it from someone

Weapon,sp/WEAPONNAME

^ these are the lines adding the weapon

YES! That was exactly it! the weapons were commented out. For anyone else that is having this issue, do exactly what Harry Bo21 said!