I started a Merc:2000 campaign in the "Nigerian civil war", the players forming an armored company for the Biafran government.
They began with old M24 Chaffee, and a couple M113, with most vehicle commanders (only 5 of them PCs) being foreign mer... assessors. Once they started operations a trickle of Stingrays (from good old T2K cannon
) began replacing the M24s. The main enemy in their area was a Cuban merc battallion equipped with Type 61 light tanks.
Two of the players (Co. commander and XO) rode the same vehicle, the rest were 2nd and 3rd platoon commanders, and the "scout squad" infantry commander.
Sometimes I was tempted to get
Last Battle out for the engagements, but with standard (2.2 edition) rules was usually enough.
Sadly, the campaign was cut short when laboral and family issues of one or another player began appearing.