Powers: Sergeant Jones has the exact same powers as Superman: Flight, invulnerability, super strength, super breath and heat vision.
Bio: Superman was testing out a new, very powerful, helmet radio while flying over Camp Metropolis he was struck by a bolt of lightning. This caused the helmet radio to broadcast and electrical patern that duplicated all of Superman's powers.
The invisible super-energy struck an unsuspecting gard at the base. When Private Jones awoke the next moring he quickly discovered that he had powers similar to Superman.
He used his powers mostly to show off. He also used them to help the Army which got him a promotion to Sergeant. Unknowen to Jones, Superman was keeping an eye on him and a couple of spy's at the base.
The spy's believed that Jones was just Superman in disguise untill Superman and Jones appeared together. The Spy's then mistakenly thought that Superman could transfer his powers to soldiers in the Army at will. They reported this false information to their superiors.
With the spy's out of the way Superman used Kryptonite to take away Sergent Jones' powers for good.