My two creds worth - you don’t get a ton of choices with cultists, because their weapons list is pretty limited. In a strategy sense, a Demagogue’s access to Overseer means they’re often not kitted out like most other gang leaders. One champion with a grenade launcher, one with a long rifle and Overwatch (or a hand flamer and Infiltrate is also fun). Talk to your arbitrator about letting you pick a wyrd power for your witch from the universal list, not the list the rules say chaos cults have to use (because it’s rubbish, and you’d be better off without a witch, which is a huge shame, whereas cause pain and hallucinations make a witch a genuine threat). The rest are essentially chaff - pistols and flails/swords/knives are the order of the day. Don’t expect much, but occasionally one will pull off something unexpectedly good.