/vr/ - Retro Games

so ive been trying to get the doom 1 textures to show up on this doom 2 map i worked on and i have no idea what im doing. im trying to copy the doom.wad textures into the wad and make a pname and textures lump like i was told but they still dont show.

the only way i can get them to work is by a)copying the two preexisting texture and pnames lumps from doom.wad but apparently I shouldnt do that?
or b)loading doom.wad before my wad

i didnt even use every doom 1 texture so i dont want to bloat the file with all of them. pic related is what i get if i open the map in slade