Leveling up guns in Warzone unlocks attachments to make each weapon more useful in battle. At the start of every season, the player's level is reset back to level 1. As the player plays more matches, they'll continue to level up and unlock new weapons. In Warzone, weapons are unlocked in two different ways. The first is by leveling up the battle pass to the proper tier, this will make the weapon immediately available for use. The second is by completing specific challenges using a specific weapon.
Regardless, this season of Warzoneoffered new buffs and nerfs for tons of weapons this weapon. It's common for players to want to switch their class to something more powerful if their favorite was destroyed by a patch. Overall, the best thing to do would be to try and max out each weapon individually. With each level, the weapon will unlock a new attachment, making it more viable in battle. While not every attachment works for every gun, picking and choosing the right thing will help players optimize their play.
Related: Warzone Pacific: Every Fighter Plane Location
Since Warzone is a battle royale, it can be difficult to level up from collecting kills since the moment the player dies, they have to reload into another game. It's common to spend times of time between loading screens. To level up weapons fast in Warzone, they should level up the weapon in another game. With Warzone, certain weapons are also available in Call of Duty Vanguard or Call of Duty Black Ops Cold War. Those have multiplayer modes like Team Deathmatch and Domination, with tons of objectives and variety for leveling up. The way the weapon levels up is by collecting kills, headshots, or completing assists, which all work towards the weapon's XP.
These are
Read more on screenrant.com