Map textures missing even though I have all the requirements?

OK so I just got the Safety bunker map V2 and there are alot of errors. I looked at the requirements and I have all the games installed and they work on other maps. So I am asking what is wrong?

These are the requirements

Requirements:
Garry’s Mod
Counter-Strike: Source
Half-Life 2: Episode 2
And a Happy Face :slight_smile:

I have all the HL2 and episodes I have CSS Garry’s mod(obviously) and a happy face. But nothing is working could you please help me out this is the only good Bunker map I have sen.

Check in extensions to see if the games are being used.