The Wikipedia entry actually says that Tunisia operates 110 of the Model 6614, not the Model 6616. A Google search shows that the 6616, while operating on substantially the same chassis, is an armored reconnaissance vehicle with a much larger 2-man turret. The 6616 also appears to have the power plant location reversed (engine rear) from the position of the louvers. So what I saw was definitely a 6614 with a .50 caliber heavy mg, the cover just made it appear bigger than it really is. What appeared to be a turret is actually a set of fold-up armored plates to protect the gunner. The images below of a Tunisian peacekeeper standing guard in West Africa and an old FIAT advertisement confirm the ID. Thanks, all!