counter strike can use texture formats 3dgs cannot. you need to extract them from the wad and convert to one of the formats 3dgs uses.

the files are submitted by 3rd party users and they recomend to any submitter that anything submitted is for public use. ( at least thier copy write disclaimer use to state such)

be awair that CS wads contain more than just textures ( usualy level geometry as well). much of which we can't directly access from the wad ( you need some CS WAD utilities to extract the rest. in fact you should never use a cs wad as-is. your best use is to extract the images, convert thier format, then build new (3dgs) wad file(s)



Ill post more links soon. ive got folders within folders of links under my favorites.