Ubisoft recently announced a limited-time event for Rainbow Six Siege called M.U.T.E. Protocol: Flesh and Metal.
WHAT's Coming >>
The event will start on 2nd August and end on 23rd August 2022.
M.U.T.E mode is set in a version of the Tower that has been taken over by the Brain. When players will kill their opponent, they’ll upgrade to a new weapon tier.