BattleTech Classic is an extremely detailed boardgame played on a hexmap. Players typically field up to 4 mechs per side. BattleTech Alpha Strike is a faster playing less complex wargame played on regular 3D wargame terrain. Players typically field up to 12 mechs per side. Both these game variants are currently being published by Catalyst Game Labs.
Official BattleTech miniatures are typically in 1/285 scale, sometimes also called 6mm.