Traitorpire

Turns out making a new traitorchan-style gamemode for station-spawn antags is as simple as changing all instances of 'changeling' to '[antag]' in appropriate case, because the gamemode procs are children of traitor with main antag checks tacked on it. Yes, it's copypasta, but it's a copypasta that's indistinguishable from normal code, as it's simply the sanest way to create antags.

So there you have it, as requested by some people, traitor+vampire! It currently is not added to the secret rotation, so that people may try it out a bit. I may try to create a traitor-whatever mode further down the line, essentially traitor-random with possibility of Extended.