A simple and easy-to-maintain design, the Leopard quickly became the standard lance-sized 'Mech carrier for the original Star Leagueand the Great Houses. Its relatively low operating costs and abundant existing replacement parts (with the exception of the drive system) has allowed it to not only survive the Succession Wars as a ship class, but become the predominant entry vehicle for 'Mech recon, objective raid, and special operations missions.
Four 'Mechs and two aerospace fighters constitutes a so-called AirLance under SLDF doctrine, where one in three lances was an AirLance. The fighter cubicles are often repurposed for cargo storage or other uses instead.
In reference to its layout and allegedly also to its atmospheric handling, the Leopard is widely known by its nickname, "Brick". [Source: sarna]
You can download the papercraft model here: Classic BattleTech - Leopard Dropship Free Paper Model Download