Ah, gang theme! I had dreams with them and Mafia, spies, etc.

I once had a modern army company in the woods where my section was allied with a Robin Hood, Medieval sort of outlaw!
I think they're related to "control" and policing/safety in your life? Are you a bit more worried than usual? I don't know about your relationship with your ex-H but maybe he was controlling (opposite of those chasing you all) so I'd say it was just an Ambien anxiety dream :-) trying to "balance" your desire for control and safety with feelings like you're out of control in some emotional sense?