The same 20 Space Squats / Dwarfs featured as both RTO3 and RT301.
Some of them survived into the 1991 Catalogue:
Lewis Gunn = LasGun 7 (/8), Gal Von Benko = OOP, Maxim Bang = Las Gun 9(/40), Heckler Smith = Bolt Pistol (/39), Smoothbore Sten=OOP,
Waltha Twelvebore = Flamer 2 (/38), Nambu Kalashnikov (Arisaka), Lee Hotchkiss, Mauser Von Dreyse = OOP, Luber Gerlich = Bolter (/34),
"Bush" Browning, Koch Wesson = OOP, Ross Von Dormus = Wounded 3 (18b), Owen Garand, Roth Bergmann = OOP,
Gatt Gunslinger = Las Gun 8 (/11), Barry Schmeisser = Las Pistol 4 (/12), Krag Jorgensen, Enfield Chambers, Colt Stoner = OOP.
See also the IC501 Iron Claw Squats.