Since its launch, the Cooper Carbine Assault Rifle has been a popular weapon choice in Call of Duty: Vanguard and Warzone Pacific alike. The gun is essentially a hybrid of a Submachine Gun and an Assault Rifle. It has an extremely fast fire rate and great mobility, but underperforms at longer ranges.
If you didn’t unlock it with the Season 1 Battle Pass, you can get it now by completing a simple challenge in the game. To unlock the Cooper Carbine in Vanguard and Warzone, you need to get five headshots with an Assault Rifle in 15 different completed matches.
Related: Best Cooper Carbine Loadout in Call of Duty: Warzone Pacific
The mission itself is pretty straightforward and easy to achieve. The only thing to keep in mind is that you’ll have to complete all the matches in Vanguard Multiplayer. If you have accumulated five headshot eliminations and decide to leave the match before it’s over, the progress will not count.
The best playlist to complete the Cooper Carbine challenge in Multiplayer should be Team Deathmatch on Shipment. The challenge completion will take more time in Warzone. Nonetheless, you can unlock the gun by playing Rebirth Island.
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