With good rng, have to have the damn schematic show up or have one drop, you can do it with the junk turrets (the ones that shoot, not the sledge turrets). But that ends up requiring room to reliably maneuver so that the turret has time to wear them down, and good rng getting the Tech Junkie mags to boost the baton, and allot of the harder POIs don't have that. Gets easier after you can have 2 of them active, not on par with an M60, tac rifle or the tier 2 or 3 shotguns though (Junk turrets are Steel tier).