When the calendar flipped to December 2020, Call of Duty: Mobile didn’t just crunch some snow under its boots—it practically buried players in an avalanche of new content. Season 13: Winter War was Activision’s holiday gift to the community, wrapping up a year that had already seen monthly seasonal refreshes like The Hunt, Anniversary, and Going Dark. Now, six years later in 2026, it’s still remembered as one of the coziest—and most chaotic—updates the game ever saw. Let’s stroll down that frosty memory lane.

The new Battle Pass dropped on December 21st, 2020, and boy, did it deliver. Right out of the gate, players could grind for some seriously cool epic blueprints: the BY15 – Top Dog, GKS – Pack Warrior, Man-O-War – Pack Leader, RUS-79U – Troka, and the star of the show, the Peacekeeper MK2 – Blast Off. And let’s not forget the Epic Calling Card "Loose Ends," which felt like a little wink to fans of the franchise. The Battle Pass wasn’t just a collection of shiny guns; it was a statement that winter was here to stay—at least until February.

Speaking of the Peacekeeper MK2, this base assault rifle strutted into COD Mobile straight from Black Ops 3 with a swagger that said, “I’m the new kid, deal with it.” Its unique double-row magazine gave it a distinct feel, and it quickly became a favorite for those who loved adaptability in their loadouts. You could almost hear it whisper, “Try me,” every time you pulled the trigger.

Then came the EMP Systems scorestreak. Picture this: you’re holding a point, enemies are swarming, and suddenly all their electronics fizzle out. No HUD, no attachments lighting up, just pure panic. Unless they had Hard Wired equipped, the EMP turned the tide faster than you could say “power outage.” It was one of those tools that made you feel like a supervillain—deny, disarm, destroy, indeed. The tweet from @PlayCODMobile back then teased it with the perfect emoji combo: 🚫💥, and the hype was real.

Another weapon that had everyone talking was the QXR SMG, a rapid-fire buzzsaw that melted opponents at close range. It wasn’t locked behind a paywall either; a seasonal challenge let dedicated players snag it. When that thing started spitting bullets, you could almost see the snowflakes catching fire. Combined with the new Grind mode—which mashed up Kill Confirmed and Hardpoint—the action got so frantic that taking a breather felt like a luxury.

Oh, Grind. This mode had its very own kind of madness. Collecting dog tags from fallen foes and then sprinting to deposit them at designated zones turned every match into a high-stakes delivery service. Drop all your tags if you got taken out en route, so you had to keep your head on a swivel. It was playable across a buffet of maps: Nuketown, Crash, Standoff, Crossfire, Firing Range, Raid, Summit, Scrapyard, Rust, Hackney Yard, and the brand-new Nuketown Russia. Yes, you read that right—Nuketown Russia, a frosty Chernobyl-flavored version of the classic, first seen in Black Ops 4. The map took the familiar layout and wrapped it in snow, nuclear testing-site vibes, and a whole lot of close-quarters tension.

For the holiday special, Raid got a seasonal makeover too. Holiday Raid dressed up the mansion with snowdrifts and festive decorations, but don’t be fooled—the competition was still cutthroat. You could practically hear the jingle bells get drowned out by gunfire. And if that wasn’t enough, a 10v10 Cookie Check Kill mode dropped for Christmas, turning the usual chaos up to eleven. It was like the developers said, “Here’s a present—now go blow each other up.”

Now, let’s talk Battle Royale, because Winter War didn’t let the big map get left out in the cold. Ski Town got a massive extension with lifts and slopes, and snowboards swooped in to steal the show. You could store a snowboard in your backpack, pull it out on any surface (though it worked best on snow), and even pull off 360° and 720° grabs just to style on someone before lighting them up. Imagine grinding down a slope, doing a flip, and landing in a gunfight—that’s the kind of action-hero moment this update served up on a silver platter.

Vehicle and weapon adjustments rolled out with the update, too. The Reloader transformation could auto-reload guns in your backpack, Death Machine ammo got juiced up, and the Equalizer saw its own ammo buff. But not everything was a boost—Fennec Akimbo users felt a sting with reduced reload speed, damage, and accuracy, while the Arctic .50’s blocking magazine took a hit to recoil control and ammo. Snipers had to be quick, because the aiming field of view stability only lasted a blink after scoping in. Those little tweaks kept the meta spicy, and forums lit up with debates faster than you could say “nerf.”

Ranked Series 8 also kicked off with this season, running from December 2020 to February 2021. The rewards were absolutely dripping with winter style: the Fennec – Midnight, AGR 556 – Winterwood, Razorback – Winterwood, and the Epic soldier Reznov – Winterwood. Even vehicles like the helicopter and motorcycle got Winterwood camos. Climbing the ranks during the holidays felt like unwrapping a new gift every few tiers.

Looking back from 2026, Season 13: Winter War remains a fan-favorite chapter. It had the perfect blend of festive fluff and hardcore competition. Whether you were grinding the Battle Pass, mastering the Peacekeeper MK2, or carving up Ski Town on a snowboard, the update wrapped the entire game in a warm, albeit explosive, holiday blanket. The snow may have melted long ago, but the memories? Still crisp as a fresh powder run.