How to Deal with The Enforcer
Either approach with cloak then slide away to the floor he isn’t on or slide close to him when he’s looking the wrong way then use cloak to escape.
He’ll destroy walls and barrels with his suppressive fire so it’s best to just break line-of-sight by moving to a different floor.
You can also look over the railing when he’s on the lower floor and get easy hits sometimes.
If he spots you and fires as you’re approaching don’t stay to attack, just get away and try again from another direction.
Also don’t get greedy if you manage to sneak up without him seeing you. Just shoot him once or twice at very close range with the shotgun for high damage and then leave immediately.