The Swiftdeath Fighter is a void-capable interceptor spacecraft of an ancient design that served as the primary Attack Craft used by the Forces of Chaos during the Gothic War in the early 41st Millennium. Like most Chaos starships and other vehicles, the Swiftdeath is usually manufactured within the Eye of Terror by the servants of Failbaddon the Armless.
Though these voidcraft are obsolete when compared to the newer patterns available to the Imperial Navy such as the Fury Interceptor, the Swiftdeath is still favoured by the servants of the Ruinous Powers for their speed and ﬂexibility in combat, at the cost of having fragile design and smaller armament. Essentially, they are the Chaos' TIE Fighters to the Imperial's X-Wings.
There are many variants of Swiftdeaths in the galaxy, but the one most commonly found in the Koronus Expanse is referred to the "Iniquity Pattern" -- although there is no evidence to suggest it originated on that cursed moon of the Expanse. These Swiftdeaths are equipped to operate competently in atmospheres as well as the void, though their performance still degrades. Little else is currently known about this Chaos spacecraft.
Battlefleet Gothic Armada 1 & 2
The Swiftdeath Fighter appear as the primary fighter wing of Chaos. They perform essentially the same as most of the races' fighters outside of aesthetic changes, being a relatively stock-standard and okay fighter craft.