After the last seasonal update of Call of Duty: Vanguard and Warzone, the two games ended with so many weapons to add to your collection. Of these, the RA 225 is a clear standout with its high-powered fire rate and sharp accuracy. The gun is also one of the smallest SMGs to date, so expect your movement times to reach record highs. If this sounds like your next go-to weapon, then here's how you can nab the RA 225 in the battle royale and Multiplayer. How to get the RA 225 SMG in Vanguard and Warzone Screenshot by Gamepur Players can obtain the RA 225 through weapon challenges, which are below. Multiplayer\/Warzone: Get 15 headshot kills.Zombies: Use SMGs to eliminate 10 Sturmkreigers. No matter which unlock method you use, this bite-sized SMG is surely worth grinding after. Its stats and traits greatly resemble that of the fan-favorite MP-40 but with just an extra ounce of damage. Those grinding their way to the RA 225 will also notice the arrival of a new rifle, the EX1. The gadget functions much like Advanced Warfare's EM1 laser rifle, as it uses energy-based ammunition that is capable of reaching opponents at long distances.