[MERGED PR] Disables antag captains on classic

[Lord_earthfire]

This feels like an update that should've been voted on more seriously. People don't always interact too much with the forums. 17 votes and +2,000 views doesn't seem like enough to make such a gamechanging update. Especially with this being such a community orientated game.

It's really not that harsh of a gameplay change to warrant a long, ardenous voting process, really.

This chsnge just shifted the meta. There is always the possibility to roll it back once the effects turn out to be undesireable. Or tweak it to fit better.