Since Marathon launched, one gun has dominated both the battlefield and the discourse. No, I don’t mean the Biotoxic Disinjector, which while ferociously powerful, is unlikely to appear outside of Cryo Archive due to its rarity. I’m instead referring to the almighty WSTR shotgun, by far the best weapon to carry in your back pocket as you explore Tau Ceti IV

Marathon’s double-barrelled delete key is so powerful that it has already been nerfed once, with a dramatic reduction in range making it virtually useless outside of close encounters. But it remains the most effective solution to any encounter where you can see the decals beneath an enemy runner’s eyes.

Indeed, the WSTR’s dominance of the secondary weapon slot has become a source of concern for Bungie, and as such they’re planning to nerf the shotgun a second time. Come Tuesday, WSTR-wielding players will need to work a bit harder against players equipped with strong shields.

“We’re gonna take a shot at bringing the WSTR more in line,” Marathon’s game director Joe Ziegler wrote in a Steam post on Saturday. “Right now, it’s become a dominant option and is eclipsing a lot of the other short range options that exist in the game.”

As such, Tuesday’s update will tweak the WSTR so that it can no longer down an enemy runner equipped with a blue shield (or above) in two shots. Ziegler explained his reasoning: “The ideal is that in the majority of cases this will force a reload in scenarios where the target has a blue shield, allowing for more counterplay in these scenarios.”

Ziegler notes that the WSTR will still be able to knock down players equipped with green shields in two shots, meaning it will remain a powerful option for players exploring the earlier maps where green shields are most common. Frankly, I think this is the right call. The WSTR a great weapon for leveling the playing field as a newer player, and a real treat when you get one. But you shouldn’t be relying on it by the time you’re exploring places like Outpost. You need to be able to adapt.

Bungie has shown it isn’t afraid to take big swings with Marathon’s meta, and I’m enjoying watching it shift and evolve enormously. Its ongoing sponsored kits only experiment has been a ton of fun so far, limiting all players to a free loadout for a more carefree extraction experience. It’s also grimly amusing how its recently added Mercy Kits—designed to let players revive downed rivals—are instead being used to murder players twice. That’s Marathon, folks.