[WindowsCentral.com]

Rainbow Six Siege's next update, Operation Grim Sky, brings two promising Operators to its roster. We've wrapped up our initial impressions after three hours of hands-on time.
Tom Clancy's Rainbow Six Siege is about to secure its next major expansion, with the arrival of "Operation Grim Sky." Firmly into the game's third year of post-launch support, the update continues to build on the game's successful tactical shooter formula.

Full story from the WindowsCentral blog...