Jackal

Infrared satellites soaring miles above Earth have spotted dozens of American prisoners of war still trapped on enemy soil.
Missing for years but never forgotten, these men must be brought home.
But America is in no position to risk an all-out invasion that could prompt retaliation. Instead, the only possible hope for their freedom is a small scale commando raid - code name Jackal.
Immediately the President turns to the Green Berets and their combat-ready, tactical infiltrating "Jeep Squad". The Jeep Squad is comprised of twenty all-terrain, four-wheel drive, super-mobile attack jeeps, each equipped with one driver and one gunner. Only forty of the Green Berets' bravest and most cunning soldiers belong to this elite fighting force, and because of the secrecy of the mission, only a few of them qualify for the rescue attempt.
Needless to say, you've been chosen to be one of the few, the proud, the Jackals. So work up your courage and polish up your guns, because it's time to save the life of each and every brave American POW.
And before you go, your country would just like to say. "Good luck, son. Don't come home alone".
Your mission begins when you and your faithfull jeep, Trigger, are parachuted along the fringes of the Cambodian border. From there you'll claw and scratch through six deadly enemy territories, rescuing POWs while encountering heavy fire from tank patrols, cannon bunkers, bomber squadrons, and a hostile navy.
Your only means of survival are a trusty machine gun, hadn grenades, bazookas {obtained by rescuing POWs and powering-up], and world class driving skills.
You have a total of 3 jeeps to risk at the beginning of Operation Jackal.
An extra jeep will be added after you rescue a predetermined number of POWs.
Jackal can be played simultaneously by 2 players.
If only one person plays, use Control {1].
Your mission ends when you destroy the enemy's main fortress {code namu Zulu] at the end of level 6.

What is abandonware ?