Basically any shotgun scientist. But I'm best at computer, though not good enough to make it to crunch mode often in multiplayer. As these things go, this is a pretty fun mode for a few games. I've got my 50 and might play again to bank for next time. I've used it for leveling up party corn, and played default rose effectively for a while. Scientists working together are almost unstoppable. I haven't tried citron, though I've certainly seem him used to advantage by people who know how to play him.
There are lots of people playing characters they have no idea how to play, which is fun to watch. And, for me a first in the mystery portal during regular hours, I was just in a dying lobby with only one opponent, who fought valiantly for his couple of rainbow stars. I salute you, solo soldier man!