All Hail Megatron
Dropshot infiltrated the US Army in order to monitor the military's tactics and plans, and report them to Megatron.
When Megatron's victory seemed assured, Dropshot finally transformed, revealing himself to the US Army and proceeded to slaughter their forces. General Witwicky tried to take the Decepticon out with a rocket launcher, but it only served to anger Dropshot. It seemed all hope was lost for the army, until the Autobot Kup came crawling out of the sea after being dropped there by a Decepticon. The battle between Kup and Dropshot wasn't shown, but Kup was shortly afterward shown sitting with Witwicky on a thoroughly thrashed and beaten Dropshot.