Operation Deadly Omen feels like a second wind for Rainbow Six Siege. Just when fans suspected that this long-running tactical shooter may have started running out of steam, Ubisoft introduced a plethora of new features, as well as changing a few of the core mechanics. Many are calling it the greatest seasonal update in years. Of course, with a new update also comes a new operator, and Deimos is already proving to be an exciting new addition to the roster.