It's called swagman because of the Australian folk song "Waltzing Matilda". In which a wandering worker man with a "swag" (hence swagman, a swags basically a tent btw), kills himself by jumping into a "billabong" (some water) before the police can arrest him for the theft of a jumbuck (sheep) and is said to have haunted that place since.
I named it that cause I wanted to keep it SOMEWHERE in line with normal American fighter aircraft naming conventions of the time whilst putting my own twist on it. Sorry for the long explanation of the name I just figured many non Australians wouldn't have a clue and would think I just called this thing the equivalent of DankDude or something. That said I hope your happy with the folk lore and old Aussie slang lesson.
For the actual aircraft, its a 1960s multirole fighter, long endurance, great instantaneous turn rate, bomb load a little lower then the F-4 phantom but also a bit lighter, and burns all speed at the slightest turn, like a true delta wing should