Notes: This is a variant of the Steyr Tactical Machine Pistol; strict licensing laws and poor sales led Steyr to sell the design to a Swiss company, Bugger & Thomet. They developed and improved the design some more, leading to the MP-9 (Machine Pistol, 9 Millimeter). The MP-9 is a very light weapon, with a rate of fire of about 900 rounds per minute, which is more controllable than most machine pistols of the same weight. The MP-9 is larger than the typical machine pistol, yet smaller than the typical submachinegun, making it a better fit as a personal defense weapon or for close combat and building shootouts. The MP-9 has an integral foregrip and folding shoulder stock, as well as a MIL-STD-1913 rail for accessories and optics. The MP-9 is compact enough to be fired one-handed, yet large enough to be comfortably fired two-handed. The receiver is made from polymer, which may be molded in virtually any color or pattern the customer desires (standard color is black). The iron sights mounted are standard military ghost-ring type.

Twilight 2000 Notes: not introduced until 2004, the MP-9 is not available in the Twilight 2000 timeline.

Notes: Some say Rexim stole this design from the French. Whatever is true, the Rexim-Favor is a design that got very little interest, sales, or use, and then the company failed in 1957. The design was sold to the Spanish, who tried to sell it under the name of the La Corunda, with no takers. The basic problem is that the Rexim-Favor is an old design, very heavy and clumsy, more a carbine than a submachinegun. The Rexim-Favor can mount a bayonet and use NATO rifle grenades, but at a weight significantly greater than most assault rifles, few wanted it. The only known service use was by the Turkish, who called it the M-68, and still use it to this day in small numbers.

Notes: This design was developed in the mid-1950s from the previous MP-48. The MP-48 was similar, but the materials and manufacturing methods used made the MP-48 very expensive and quite heavy. The MP-310 used precision castings instead of machined parts; however, this was still rather expensive, and also slow, and the production line was closed in 1972 after only a little over 1000 were made. Some were exported, and may be encountered in odd corners of the globe, but most were taken into service by the Swiss Police and were still being used by them in 2000. Like the French MAT-49, the magazine and well can fold forward; unlike the French weapon, this was not meant for paratrooper use, but instead to provide a smaller package when stored in a vehicle.