// .res entries:
gfx/env/dm_hellway1up.tga
gfx/env/dm_hellway1dn.tga
gfx/env/dm_hellway1lf.tga
gfx/env/dm_hellway1rt.tga
gfx/env/dm_hellway1ft.tga
gfx/env/dm_hellway1bk.tga