Have you tried Iron Grip: Warlord yet? Igwarlord.isotx.com It's a pretty fun game. I'd recommend you give the demo a shot. Contains a single map
In other news... The Doom 3 mod, Recall to Hell ( Moddb.com ), isn't as dead as everyone assumed!: Doom3world.org
Forum members of Doom3World.org are banning together to get the mod in a playable state. While it won't be how originally planned, we're hoping the content won't go to waste.