Decals & illumination (fr_terroristattackonfacility)

Hi, everyone.
I would like to request your help with this map, which a lot of problems I am experiencing with. The first problem is that some of the decals I am using as textures don't work, I have included the decals in the ZIP file as a .wad file. What happens is that they show as black and pink squres instead as texture as I am using them. Also I would like to request your help in illumination, as I think I am not using the light entities as they should be used; and in the func_ladder entity, it seems that the ladder doesn't show in the final product.

I would also appreciate your help with the overall map, tell me if you like it or not, if you enjoyed it, etc...

Note: This is the second map I ever make.
P.S. If you don't understand my english, please ask me to re-write this.