Battle of XXI'st Century (B-XXI) 

Company scale system about modern battles, driven by the mechanics bit similar to the B-35 system. Highly detailed rules show the differences between the weapons of various armies, with armor or fire factors. Each brigade has its own units and tables, so players may check how the same unit would work with different kinds of equipment, from outdated to the most modern ones. Boards are smaller that usually, and each player usually controls no more than one brigades. With a devastating firepower or tanks, artillery and air units, battles are often short yet bloody. System cover both historical battles and the hypothetical, possible conflicts of the yesterday, today and tomorrow.