Black Ops 7, Warzone Season 4 Week 2 challenges unlock new attachment and ability

If you want the M10 Breacher Argus Lever attachment and Death Machine Major Ability fast, Week 2 was the reset to clear. Finishing any six objectives across Multiplayer and Warzone unlocked the pair plus 10,000 bonus XP, and every individual challenge paid another 2,500 to 5,000 XP toward battle pass progress.

The quickest route was to stay in the mode that matched the easiest objective chain. Multiplayer asked for Marksman Rifle eliminations, Bloodthirsties, kills while a Field Upgrade was active, Specialist Wildcard perks, double kills with Special Weapons, and hipfire kills. Warzone pushed eliminations using enemy weapons, Marksman Rifle kills, lethal-assisted kills, and late-circle eliminations once the fourth circle began. That made aggressive Field Upgrades, small-map play, and objective queues the cleanest path to six completions without dragging out the grind.

The reward set mattered most for players who already lean into close-range fights. The official weapon guide lists the M10 Breacher as an immediate-unlock pump-action charge shotgun with a max weapon level of 36, so the attachment reward feeds into a gun built for pressure at short range. The Death Machine Major Ability fits that same tempo, while the bonus XP gives every completed objective value even if the attachment itself is not the main draw for a Warzone player. For Battle Royale regulars, the challenge list is still worth touching because the XP stack is direct and the Warzone-specific objectives let them progress without leaving their main mode.

Week 2 also sat inside a much larger Season 04 push. The season launched on June 4, 2026 and brought new and remastered Multiplayer maps, Rogue Run Zombies, the Fortune’s Keep Refresh, new weapons, events, and rewards. The Season 04 Battle Pass added more than 100 rewards, and the launch lineup named the KRS-7.62, CBRS-3, Grimhawk, and VX Compact as new weapons. In that context, weekly challenges were not just side tasks but part of the season’s main reward economy.

The patch notes frame that structure clearly: weekly challenges can unlock new Loadout items, Camo rewards, and XP across the season. With Week 2 published on June 12 at 2:05 AM PDT, just eight days after launch, the reset landed at exactly the point when players were still building loadouts and racing the battle pass. For anyone chasing a concrete attachment, a Major Ability, and a fast XP hit, this was the kind of weekly set that moved to the front of the queue.