Wargaming Mexican Revolution Battles 1910-1920. Fighting for Mexico (FM) are for fighting battles. FM can be played using most figure sizes. It is a grid based game. In 15mm the table is 5 x 3 feet. FM is a comprehensive set of rules. This means it includes army builder, scenario generator, victory criteria, 8 different armies and a host of rules specifically for the Mexican revolution. Note: Only 150 Copies printed!