Add Rev Back to Rotation

[69andahalf]

I'd love for Rev to come back, but to address the above concerns I'll suggest two possible amendments:

1) Make Rev a late-join/late-round mode only. Hey, if everyone's getting murdered, why not start a mutiny in protest?

2) Rev will only activate when there's an HOS on board. Those riot shotguns and tear gas are there for a reason!

Those seem like a good idea, but i'm kinda wary of de-railing a game mode because it can sometimes ruin it for the antag that round. I'd probably expand to activating rev when all head roles are filled, rather than only the HoS, as this would give the heads even more of a fighting chance.

If rev doesn't allow you to call the shuttle before either side has won I'm sure the wizard coders could find a way around this dumb feature that would also remove a lot of the stale-mates that people are concerned about. It was removed from wizard and made that game-mode a lot better so I don't see how it wouldn't help rev.

I should also mention that what I mean by working rev is one that doesn't need to be consigned to the "it needs to be worked on list before it can be added" because that's just another way of saying it isn't going to be added. If it's at least added back and looked at for like a week, which I should mention was my original idea but I am dumb and forgot to mention it, then I don't see what could go wrong. Also remember that every game mode can either go for a short time or a really long time, that's just what happens, rev has just gotten the short end of the stick when it comes to this.