@Polkjes
You should do fine with UHPs if the team kills the demons fast, bring a few might rings and some amulets.
@shortboy
You can't really do much, try to focus on healing the main blocker if needed/possible or the one behind you. You should also bring amulets and rings.
No selfhealer, use 2 hotkeys with your GHP, one on yourself and one with crosshair. Same with manapotions.

If you use xeno, make sure you have an auto amulet/ring equipper.