should have everything you'll ever need. i havent tested if the files work though.

EDIT: I just figured out that the models folder isn't there (as it is in hammer)

hl2_misc_dir.vpk for models and vmts

hl2_textures_dir.vpk for the vtfs

EDIT: Now I'm guessing there is some sort of file path text document or vmt or something because they're checkerboards/missing textures. I need to learn... Help? Please?

remember to put the vmt and vtf files in the same place. for example, if you wanted to port the cranes from hl2:

move models/cranes from the misc vpk to portal2/models/cranes

then in the misc move materials/models/crane_docks to the same folder in portal 2's folder.

then finally, in the textures.vpk, do the same as the above. if you have any more problems, this website might help:

https://developer.valvesoftware.com/wiki/Main_Page

...but then again, you might also get more help from these people:

lpfreaky90
benvlodgi
skotty
chickenmobile
josepezdj

EDIT: (yet again ** Now I have all of the correct files(Im hoping) with the vmts. I've changed the directories yet the textures are STILLnot working I can just go on and on with everything but whats wrong this time? Can someone direct me to tutorials for importing models aswell? Wow... I think I just figured it out.