Had these kicking around for a while, decided to make up some history for 'em. They're to scale with my previous Gradius builds.
About this creation
Technically cheating with this one since it's a transport, but it's in the same scale and made at about the same time as these, so...
The Travel Pod is one of the oldest types of spacecraft still in service, being used as a cheap, reliable intra-star system sublight transport. It was designed and put into production prior to widespread availability of FTL travel, and in its day was one of the fastest reusable spacecraft in existence. The Travel Pod Mk. I (left) was powered by twin aerospike engines, and had a crew of two.
A later variant, the Travel Pod Mk. II, (right) replaced the by-then ancient engines with maneuvering thrusters used by some outdated warships, as there was a surplus of them; these engines were more efficient and more powerful, increasing the Travel Pod's speed and range. The Travel Pod Mk. II remains in production millennia after the Mk. I entered service. The Mk. II seats four.
Left to right: the Mosquito, a VTOL I haven't named yet, and the Aquila.
The Mosquito is one of the longest-serving fighter types in existence, having been in service before the Modular Weapons System was even conceptualized, and unlike other pre-Modular fighters, later variants adapted Modular Weapons System compatibility as a stock feature; as such, it's popular with independent operators due to its low cost, and retaining a built-in plasma cannon even in its Modular-compatible variants.
The Aquila is another pre-Modular fighter still in service in the Modular Era, but unlike the Mosquito has not been given Modular Weapons System compatibility; instead, it is popular with militaries due to its heavy built-in armament--two heavy plasma cannons and four beam cannons, all mounted in the "wings" of the fighter. It is one of the few heavy fighters in common military use, and its tri-engine configuration grants it superb speed and maneuverability.
The fighter at left still goes unnamed, but is notable for being one of few applications of an electrolaser armament outside an atmosphere, providing its own gas to ionize and using the extremely-low-density particles scattered throughout space as a catalyst as well; this allows it to use its unique quad-electrolaser armament outside an atmosphere, with the caveat that it has limited ammunition in the form of the gas and reloading in space requires either a comet or a large amount of patience.
The fighter pictured to the right, the Eclipse, is notable for its tri-plasma cannon armament, and its large vertical stabilizer and high level of anhedral in the wings, which causes stability problems in an atmosphere; the large vertical stabilizer is meant to somewhat counter this.
The Stingray fighter is a Modular Weapons System compatible fighter which is popular among both militaries and individuals for its high top speed and excellent maneuvering characteristics, especially in an atmosphere. It is of fairly standard configuration, other than its odd wing planform.
The Scimitar is a tiny (roughly 30 feet in length, half that of a typical space fighter) Modular-compatible light fighter, which performs horridly in an atmosphere but has great maneuvering characteristics outside one as its light frame gives it little momentum and thus allows its direction to be changed more easily. It possesses MWS ports on its twin fuselage "prongs", and is a favorite among individual operators. Some pilots have taken to attaching wings and a vertical stabilizer to the Scimitar to improve its atmospheric handling characteristics, and as a result conversion kits for such do exist, including one that is designed to be easily removable for non-atmospheric missions and one that adds two additional MWS ports to the wingtips.
The "Grouper" fighter is one of the oddest fighters in mass production, using an auxiliary warship engine as its primary form of propulsion and maneuvering entirely through thrust vectoring. It is armed with a single medium plasma cannon, but compensates for its light armament by being blindingly fast due to its massive engine.
The Crane Fly is a light fighter derived from the Mosquito, meant more for militaries, and as such includes more built-in weaponry while still being Modular-compatible. It is armed with two plasma cannons instead of one, and uses more powerful cannons than the Mosquito.