The best meta SMG loadout in MW3 Warzone Season 3 is not ... With a new one-shot sniper rifle entering the conversation, as well as an unexpected, dominate Battle Rifle, there are more choices ...

There are three to find, which help improve your sniper rifles, pistols, and secondary weapons like the SMG. Here's where to spot each workbench; one of which is very hard to spot without a tip.