The SAF-2 is the replacement for the SAF-1. It features two SAJ/G(Space and Atmosphere Jet/ Gimbal) engines, which if you couldn't tell it can operate in space and atmosphere. And also gimbals. Its main armament is 2 20mm gatling autocannons which were in the fuselage the guns each had 2500 rounds. And it could carry the same payloads as the SAF-1 but more of it.
I did this because the SAF-1 looked bad