These two attachments will make you extremely fast, even while aiming down sights and firing. Lean all the way into that speed with a Tiger Team Spotlight and Raider Stock. Adding a Task Force Barrel pushes the range further and increases your strafe speed. The Agency Suppressor is on the muzzle, both to keep you off radar and boost your damage range.
We recommended you stick to the close-range, high mobility build below: While some SMGs like the AK74u now perform well as sniper supports in Warzone, the MAC-10 is not one of them.