Wolfenstein X: Hearts of Liberty is a fantastic Wolfenstein themed DOOM total conversion mod with big guns and tons of carnage game.
Please continue with the following description in freegameplanet
Here´s gameplay video by Mr. Gamer
Note – You will need an official Doom .WAD file to play Wolfenstein X. This can be derived from the game files of Doom, Doom 2 or Final Doom. Place the WAD file in the GZDoom folder then select BOTH WolfX.pk3 files and drag them on top of the GZDoom.exe to play. You can get GZDoom Here.