I don't know if I'll make this into a full-blown project where I completely recreate DOOM II, but I might not as there will come a point where brand new enemies have to be programmed. But so far, I have this as a proof of concept. I remember seeing something similar on this website, but with the first level of DOOM I, but I can't find it anymore so... you know
My plans are to emulate the doom ambience. I'm going to put an ambient track in it, take the actual textures from the DOOM2 wad and put them in their respective places, and even include all of the secrets. Install it and give it a look.