TTV's (and other explosives) during gang rounds

[Roomba]

The thing that makes gang specifically different is that as long as any one of the toxins metagang can get into a gang they can go 'okay, you guys get the TTVs rolling, which is a perfectly legal non-antag thing to do as long as you promise to use them for "experimental" purposes, and once you're done with that come join my gang and we'll light this sucker up'. No other mode allows for that same kind of self-antagging (except Rev, and I would also be happy with a toxins shutdown during Rev because there's no call for it in that mode either).