The Sledgehammer became available for players to unlock through a Black Ops Cold War challenge. However, a bug is redefining the player’s progress, preventing him from acquiring the melee weapon.
Black Ops Cold War vs. Warzone Season 1 is in progress, which means you have many new weapons available to you. The Sledgehammer is the second Cold War melee weapon that you can now unlock.
If you want to get your hands on it, then you need to complete a challenge that consists of getting two kills with your knife. The difficulty of this task was compounded by a flaw that is restarting players’ progress without any prior notice.

Sledgehammer Glitch continues to restart player progress
The exact parameters of the challenge require you to score 15 double kills with the knife in separate matches. Completing this in multiplayer, war zone, or zombies should unlock the sledgehammer, but this is not working properly.
Many players reported that the game randomly restarted their progress when they were already at the start of the challenge. This caused them to start the challenge all over again, preventing them from acquiring the weapon.
Several topics have been posted on the Call Of Duty: Black Ops Cold War subreddit, where fans are gathering to express their frustration at this failure. You can see one of these posts below.
Reddit user Klankson wrote: “I was trying to take the challenge and I got to 10/15, but when I checked my progress, it dropped to 5/15. It’s not a big deal, but it’s still annoying. “
This failure is frustrating and makes the whole challenge feel like an unnecessary routine. You can still use the Sledgehammer model even if you have not unlocked it, but it is in a $ 20 package and you will have no weapon level progress until you complete the challenge.
How to work around the Sledgehammer failure
The exact cause of this problem is not known at the moment, but some players have suggested playing a full game on all 15 deaths to avoid restarting their progress in the challenge. A useful tip came from donny126.
“Everyone. You have to play the full game at all 15 or it will redefine your progress. In fact, you have to play a game after 15, where you equip it and play until the end if you want to make sure it doesn’t disappear. Game down ”
Some players have tried this solution and it seems to have worked. It won’t be easy, so you’ll need to accumulate those double deaths quickly. The best way to do this is to play in Nuketown ’84 with the knife as the main.

Also make sure you have the right class equipped to take down your enemies, like Ninja or Tracker. This map is small enough for you to encounter enemies more often, so be ready for a fight. In doing so, you will end up getting the sledgehammer.
Although this issue is being addressed by multiple players across the community, there is no planned solution for it listed on the Black Ops Cold War Trello board. Therefore, fans will have to continue using the workaround for a while.
It is likely that Treyarch and Raven Software are not aware of the bug yet. Hopefully, they will announce a fix for the problem soon and we’ll be sure to let you know when they do.
Image credits: Treyarch