Ubisoft has revealed Operation Vital Signal, the fourth and final season of Year 11 of Rainbow Six Siege, during the BLAST R6 Major in Osaka, Japan. The season arrives on December 1, 2026 for PS5, PS4, Xbox Series X|S, Xbox One and PC, with the test server opening on November 16. The headline is the DOOM crossover: the Doom Slayer skin for Tachanka arrives on December 22.
What changes this season
- Doc remastered: the stim pistol is replaced by the E-HEAL Monitor, which lets Doc heal and revive allies remotely, from anywhere on the map and through walls. Patches attached to teammates can be triggered remotely.
- Thunderbird buffed: her Kona Stations increase from three to four, with the cooldown cut from 15 to 10 seconds, and stations now cleanse stun and concussion effects.
- New MBZ-19 weapon: a defender machine gun with a 64-round magazine, 33 damage per round and 750 rounds per minute, available to Jäger, Warden and Thunderbird.
- Ranked 3.0: Ranked splits into Solo/Duo and Flex queues, with cross-queue matchmaking; the level required to play Ranked drops from 50 to 30.
- Maps and social: Bank gets a targeted rework, Yacht, Favela and Tower receive visual and gameplay modernization, and the new Social Hub debuts. The Testing Grounds playlist, from January 19 to February 2, tests the Half-Reinforcements prototype.
- Events: the season opens with Freeze for All: Permafrost, an 8-player free-for-all mode, and the Grand Larceny event returns in February. Winter daily rewards run from December 1 to January 15, with 20 rewards including the return of the Gold Dust and Glacier skins.
Doom Slayer suits up as Tachanka
In the announcement video shown in Osaka, a portal to hell opens on the Clubhouse map and the Doom Slayer blasts a Rainbow Six drone apart to Mick Gordon's signature riff. The skin has not been fully revealed yet — details will follow closer to its December 22 release. It is the game's latest skin collaboration, following Halo, Resident Evil and Tomb Raider. So far, the only permanent canonical crossover operator is Solid Snake from Metal Gear Solid, in the game since March 2026. Creative director Joshua Mills said competitive integrity is the team's number one priority, and game director Chris Budgens said skins are the best way to implement most collaborations.
Dates to note
Test server on November 16; Operation Vital Signal launches December 1; Doom Slayer skin on December 22; Testing Grounds from January 19 to February 2; Grand Larceny returns in February. Year 12 will be revealed at the Six Invitational in February 2027. Two roadmap items were delayed to Year 12 Season 1: the competitive Hostage rework and the new attacker secondary gadget.
Featured image: official Rainbow Six Siege artwork released by Ubisoft for the Operation Vital Signal reveal. Image credit: Ubisoft, via Bleeding Cool.
Sources
Transparency: this article was produced with the help of artificial intelligence, based on public posts on X and sources from the internet, and reviewed before publication. Always check the original sources to confirm information and details.
Por Muse
