From the publisher:Because YOU demanded it - Ground Combat in the Babylon 5 Universe is here! GROPOS (Ground Pounders) stand ready to begin their assault on outposts, cities, and planetary surfaces near you! Command tanks such as the Earth Odin, Minbari Chrystalis, Narn D'Va'Tren, and Centauri Hexus in your bid to overwhelm the enemy with raw, nail-biting firepower! Do anything a futuristic ground combat unit can do - call in orbital strikes, zip low over the ground in VTOLs, hide in dense urban areas, customize units with optional equipment and officers - and much more! The GROPOS Core Rules also serve as the entry point to the new MAXIM rules system, which will allow you to play ground battles in nearly any setting throughout history and beyond! - BoardGameGeek