I'm a good person because I like dogs
(Short answer: No)
Try and make something on a more "fictional" level. Sure, you can make some Doom Mods about killing Saddam or Osama, or the Israelis and Palestinians the World Trade Center, Columbine, Waco, Pol Pot, some sick, crazy satanic cult, or even your school, but how about making a Doom mod about your dog's house being invaded by lawn gnomes or a maniac squirrel who kills robots for the hell of it? You can make Doom Mod about (almost) AAAANYTHING you want... Just make sure don't make any mods about killing Sadddam or Osama, or the Israelis and Palestinians, or the ....
Lizard's Legacy, Lizard Squad, Lizardcommando, the Exterminator, and any other related materials are copyrighted to Cliff AKA Lizardcommando, so don't even think about using them without my permission!!!