MIMIC ALPHA (EDGE OF TOMORROW)
Edge of Tomorrow
Alphas are larger, blue variants of Drones, and are psychologically-interconnected to the Omega; if an Alpha Mimic dies, a response is instantly triggered in the Omega that causes it to turn back time, while retaining knowledge of the potential future. This mechanic allows the Mimics to adapt to any combat strategy, since they are capable of continuously turning back time until a favorable outcome is reached.
According to Dr. Carter, Alpha Mimics are rare, only appearing about 1 in 6.18 million times.