Gang needs to be reworked at the very least

[Lady Birb]

Maybe turf doesn't count when it's vented or otherwise destroyed? They're trying to take the station, that would be pointless if it cannot sustain life.

Hmm, that's pretty good. We already loop through captured areas every minute or so, we could just check a random turf in the area and see if it's vented, or the air group, idk how that works offhand. 

My only concern there is that a gang might vent another gang's turfs to harm them. Like, it wouldn't be a good idea because then eventually capturing it would mean nothing, but people still might.

I think you are missing the fact that 90% of people who build bombs during gang rounds don't care about objectives at all and just want an excuse to murderbone.