Using only levels and textures?

[Reisal]

I take it's possible to use the FreeDoom levels/music/textures/flats but also use the normal Doom enemies? Should the ZDoom 2.8.x and GZDoom 2.2.x ports work without issue since there are transparency maps inside the IWADs?

[Gez]

Just make a wad with all the Doom II sprites and sounds, load it with Freedoom, there you go.