Soldier of Fortune Additional Payback is intended to fix, polish, and expand upon the original Soldier of Fortune Payback game. The main features are the reworking of the weapons and the addition of alternate versions of the levels.
Soldier of Fortune Additional Payback includes a third variety of Al Qa'im: Outskirts as a secret mission. It is hidden at the bottom-right of the mission select menu, just below “Donetsk: Club Evolution”.