Basically the title.

Deadnaughts and its variations currently are pretty much special enemies, as they can only appear in ( few ) specific missions. Howhever, they are really great enemies and, differently than let's say, Trojans, Deadnaughts actually mamage to do their job in being the main threat. It makes you have to think, too.

I really would like to have them appearing every once in a while on Graveyards or something.