Division 2, Ember Cheese Tactic, Rogue Agent Spawn, Escalation, Bank Headquarters, Second Mob behind Doors. Ok this is a way to not ever have to worry about Rogue Agents in Bank Headquarters, this is using any Ember Engine build but focus on higher tick damage and use Vile mask with DTTOC on active weapon or any gear, this buffs Toxic Delivery ticks massively. So start of mission you kill first mob down hallway, proceed to next area where you need to open doors (don’t open the doors though) and this is often where a random rogue agent scenario will spawn. Now usually you cannot burn though this door because opening them triggers, but you can when rogues spawn (remember this is useful anywhere), equip your best tick damage Ember Build.
Walk to the door, aim your Drone to spawn just inside the other side door and it will enter the area and start burning. After it is inside you can move it and when your indicator shows a valid spot move there. I’ve done this on Tier 10 so yes it works, you might have a healing Rogue but they will die although slower. Equip the DTTOC cover (Brooklyn Expansion Skill) skill to help build those tick while in cover too. I was recording a video of this when Delta happened right about mid part, maybe I will post it as is since one of the two rogue died before Delta.