Dark of the Sun (1994)

Professional soldier Curry (Rod Taylor) is tapped to oversee a dangerous mission in the Congo. The leader of the region needs Curry to guard a train carrying valuables that is snaking through areas controlled by rebel forces. Teamed with a local named Ruffo (Jim Brown), Curry recruits two more men for the job -- a heavy-drinking doctor (Kenneth More) and a former Nazi (Peter Carsten) -- and the foursome work to protect the train from invading marauders.