History
The Guardsmen are a group of elite pilots wearing the Guardsmen armors. These armors are most likely created by the US military after building the suits from Stark, like with their Earth-616 counterparts.
The Guardsmen were hired to guard Project Pegasus.[1]. Led by Michael O’Brien, they fought against the Snarks when the alien reptiles attacked Project Pegasus to steal the Annihilator build by Dr. Power, and were able to drive them off. After Project Pegasus closed down, the Guardsmen were frequently seen arresting supervillains that had just been defeated, like Eddy Brock[2], and the Sinister Six.[3]