Antag Critters Roundstart

[Kamikaze Mongoose]

Baal brought up the idea of spawning as a cleanbot roundstart and I felt inspired. It would be an interesting idea if you could opt into being an antag critter and have a small number of them spawn roundstart regardless of the actual round type. I don't think it's an idea without some downsides, but it does seem interesting enough to make a post with. Thoughts, additions, and criticisms are highly welcome in the comments!