Just when you thought it was all over, Arulco calls again upon your help to rid of a new threat. This time the threat comes from Arulco's former mining corporation: Ricci Mining and Exploration. After losing control over the mines during the civil war (Jagged Alliance 2), they now want those mines back!
Ricci Mining and Exploration have established a missile base in the neighboring country of Tracona and threaten to attack Arulco with missiles unless their demands are met (they already blew up the Tixa prison as a warning).
At Enrico's request you are to travel to the area suspected to contain the missile base, this time near the border of Tracona. Your mission: Locate the missile base and destroy it.
Jagged Alliance 2: Unfinished Business is a stand alone game that can be played without Jagged Alliance 2. You can import your character from Jagged Alliance 2. Not much has changed, though there are some notable updates such as different AI, new character development options, new characters, new weapons and new tactical features like display of sight range and cover opportunities. The game also comes with a campaign editor. The map is much smaller, containing about 20 accessible sectors, considerable part of which are underground.
Appropriate to the mission, the militia training feature does not exist in this game. In this Jagged Alliance 2: Unfinished Business is more similar to the first version of Jagged Alliance than to its sequel.