Ubisoft has released Operation Tenfold Pursuit (December 2, 2025), a major Year 10 Season 4 update for Rainbow Six Siege, headlined by a full remaster of Attacker Thatcher. His classic EMP grenades are replaced with the new E.G.S. Disruptor, a scanning, wall-penetrating EMP launcher that offers more precision and utility. Thatcher also gains a new designated marksman rifle, the PMR90A2, which will also be available to Hibana, Capitão, and Nøkk.
The season introduces a complete Fortress map rework, plus modernized updates to Skyscraper and Theme Park. A wide range of balancing changes hits hard breacher operators like Hibana, Thermite, Maverick, and Ace, while Defenders see updates to Castle’s barricades and a reworked jamming system for Mute. Want to get all the new seasonal rewards quickly? Check out our Battle Pass Leveling.