Nope: http://store.steampowered.com/app/1250/ It appears from time to time in some “Indie Bundles”, I got mine from one and one extra for my brother. And the sequel is being finished http://store.steampowered.com/app/232090/
Here you have more KF-Doom goodness 
- YouTube Doom 2 Co-op Gameplay (Killing Floor Mod) - YouTube
I’d really like to know how they did it.
Edit: I found this program, maybe you can use it to convert your maps GitHub - bcsanches/wadlib: Tools for converting Doom maps to 3d meshes, the project aim to create
Another edit hehe: Maybe this works http://www.moddb.com/games/unreal-tournament/tutorials/how-convert-a-doom-map-to-ut (if that method doesn’t work read the comments there is another one) and once you have the T3D file you can use this one http://www.moddb.com/games/udk-doom