I can infer that “BDv21” means Brutal Doom 2 version 21 alpha or beta?
If you care to respond on Facebook to the mod maker, then go to https://www.facebook.com/groups/BrutalDoom/ and it's the post with "Ginny Griedel is with Marcos Abenante."
I think that in Unreal Tournament 2004 that you get to step into tanks and operate them to kill the robot, alien, or psycho.
I like the way that you can step in the tank and operate it like you can kill a mutant and wear his MechaHitler suit in a DoomJedi mod. What was that Eisenfaust mod where you can wear the MechaHitler suit? What was that Eisenfaust mod where they tell you to turn up the speakers and it starts on a farm?
I remember that in one of Doom or Doom 2 mods, DoomJedi contributed to it and it had Wolfenstein 3D graphics. Blades of Agony!?
EDIT: This Ginny person posted in the thread to somebody that Marcos will finish that mod in April. She typed that we should check his Twitter page.