A mobile suit platoon under the command of Zeon Lieutenant Commander Char infiltrates Side 7-1 bunch and discovers a Federation prototype mobile suit.
The platoon members then begin their destruction.
They then encounter one of the mobile suits, a Gundam,
and the first-ever mobile suit battle breaks out inside a colony.
The Gundam destroys two Zakus.

U.C.0079.09.18. The first ever battle between mobile suits takes place inside a colony. | ふっださん's Gunpla works