Maceo is an abandoned Yaran town and the map for one of Lola Tafalla's Special Operations. After a mudslide derailed a train carrying PG-240, the army sealed the town off and you sneak in to steal the PG-240X.
Most of Maceo lies in ruins. The spill made the townsfolk ill, and the survivors were moved out. FND soldiers now hold the whole area, with the airbase as the real target. Villagers such as Julia and Chita are still around the edges.
You get into the town from the evacuation area, then push on to Omaja Airbase where the PG-240X is kept. Once you have the canister, keep it out of the sun or near water so it does not overheat. Then get it to the extraction point. Scout guard positions with your phone before you commit.
Maceo sits outside the main map, so you start it by talking to Lola at a guerrilla camp. Special Operations have four difficulty levels and pay out Moneda you spend in Lola's shop.