Did anyone ever have some ideas for new armies? I had loads but I'm too lazy and not talented enough to sketch them out, plus they never accept designs from fans anyway I don't think.
Anyway the main idea I have right now is a small human faction that rebels against the Imperium. The basic feel for them is like The Resistance in Terminator in the future, basically ragtag as fuck. They use some Imperial guard eqpt, some SM eqpt, and they're also allied to either the Tau or Eldar, which is why they survive at all. The fluff can have them being wiped out after just a few millenia.
There's also an asian theme, units would be like the Vietcong, Taliban/ ISIS type units with suicide bombers (call them Kamikazes), Japanese WW2 units, Samurai, Ninjas, and Shaolin type monks.