Fasttrack is a semi-autonomous armored interceptor under the control of the Decepticon Scorponok.
Marvel Comics Continuity
Fasttrack was among the Decepticons under Scorponok's command. They were ambushed while leading captured Autobots on a death-march to Template:Tooltip smelting pool. Fasttrack seemed caught off-balance balance by the attack, and was among the first to flee the scene once the retreat was sounded.
The comic's mistake-riddled coloring seems to indicate Fasttrack was the fleeing Decepticon Scorponok called a coward after pointing out they were badly outgunned. The robot mode was shown was Blot's however- a mistake also not uncommon in the Headmasters comic...