Metal Slug

Intro the Regular Army Peregrine Falcon Squad soldiers Marco Rossi and Tarma Roving, and must face the villain General Morden and his Rebel Army, who wants to eliminate the governments and establish a new order, all of this fueled by his anger caused by the death of his family that could have been prevented if the Regular Army was not corrupt. Later on the series, Marco and Tarma are joined by S.P.A.R.R.O.W.S agents Eri Kasamoto and Fio Germi, as Morden makes multiple allegiances with an alien race and other military groups.