Ubisoft Reveals Rainbow Six Siege Operation Vital Signal

By Miles Carter, November 15, 2026

Ubisoft revealed Operation Vital Signal, the Year 11 Season 4 update for Rainbow Six Siege, at the Osaka Major on Nov 14, 2026. Ubisoft said player feedback "stays central to this update."

Doc's remaster and the MBZ-19

Doc's remaster introduces an E-HEAL Monitor system. Ubisoft said Doc can remotely heal and revive teammates across the map "without exposing himself to unnecessary risk," using patches pre-attached to teammates and triggered from a distance.

The new primary weapon is the MBZ-19. Ubisoft described a 64-round magazine, 33 damage per round and a rate of 750 rounds per minute, available on select defender loadouts including Jäger, Warden and Thunderbird.

Thunderbird's Kona Station count increases to four, the cooldown drops to 10 seconds from 15 seconds, and the stations will cleanse stun and concussion effects. Ubisoft is also reducing the damage and magazine capacities of the ACS12 and TCSG12 shotguns, with more changes planned for the Mid-Season Update.

Split Ranked playlists and the Bank update

Ranked will split into Ranked Solo/Duo, for individual players and duos, and Ranked Flex, for larger squads. Cross-Queue Matchmaking is meant to keep queue times in line across squad sizes. The account level required for Ranked drops from Level 50 to Level 30.

Bank is the second map to receive a targeted update, with a new entry point behind the building that Ubisoft said will speed up attacker entry and add exterior cover on the second-floor site. Modernized Maps work continues on Yacht, Favela and Tower. Season 4 also adds a Social Hub overlay for squad creation and friend management.

Winter rewards, events and Testing Grounds

Season 4 begins with Freeze for All: Permafrost, an 8-player free-for-all mode, and the return of Grand Larceny in February, which Ubisoft called a "fan-favorite" event. Winter Daily Rewards run from Dec 1, 2026, through Jan 15, 2027, with 20 rewards, including five Celebration Packs returning for the first time since they were introduced. Ubisoft said each of those packs has a chance at two of Siege's most iconic skins. Gold Dust and Glacier are coming back, along with a new animated weapon skin for the T-5 SMG.

A Testing Grounds playlist will run from Jan 19, 2027, through Feb 2, 2027, with Half-Reinforcements, a defender gadget prototype Ubisoft said is deployed the same way as full reinforcements.

Ubisoft pointed players to the official game page.