Call of Duty: Warzone and Vanguard are both in their final season of content with Season 5 Reloaded, and one final gun has been added to the weapon pool. An update on October 6 added a new light machine gun for use in multiplayer, Zombies, and battle royale. Here's how you can unlock Season 5 Reloaded's Lienna 57 light machine gun.

How to unlock the Lienna 57 light machine gun

The Lienna 57 is described as a compact light machine gun capable of high accuracy during sustained fire at short- to medium-ranges.

This new LMG can be unlocked either for free with an in-game challenge, or it can be purchased as a weapon blueprint with a cosmetic bundle.