I thought about a gamemode with randomly generated weapon drops with variable damage and a few different models too, people could pick out an ability at the start of the match (something similar to Action Skills in Borderlands 1/2/TPS or Supers from Destiny) which can be procced via right click or keyboard?
I know it would be difficult to make and probably wouldn't get much player gain but I think it'd be worth a pass, I could do some (very limited) modelwork but... yeah?