Let me know if this has been discussed before. Frenzy is not mentioned or appears in the movie prequel comic. He is too organic looking to be from Cybertron. He is too small to ever be a protoform. Frenzy is created by Agent Simmons with the Allspark energy after the failed attempt to capture NBE-2 (aka Bumblebee). He hopes to set-up some sort of NBE capture in order to fulfill his familys legacy. Frenzy escapes, this will explain the 'three claw' marks on the walls seen in that room. Frenzy then hitches a ride with Banachek and ends up in AirForce 1.