The Socrux S.P.189--HKAS XMC (Experimental Military Craft) is a plane that developed upon the orginial S.P.189 Prototype.

When Socrux produced a couple S.P.189 prototype, tested it, lost some because of the bicycle landing gear, and wasted quite a large amount of money due to fuel cost and reparations, they needed a way to make money out of the plane.
Unfortunately, since countries with a decent air force around the world still have sanity, they weren't getting costumers at all. In a last ditch effort to attract buyers for S.P.189, the company got it into airshows to exhibit it's capabilities.
Their attempt was not in vain. HKAS, a company that mainly produces general aviation aircraft, got in to contact with Socrux and offered to invest in the plane. No one knows why HKAS is suddenly interested in military aircraft.

The joint effort between the two aircraft manufacturers resulted in the XMC, a micro fighter that HKAS claimed can land on short airstrips and go at speeds above 2000KM/H. The aircraft now have missile mounts above and below the wings with wing tip fuel tanks and stabilizer gears to make life easier for the pilot. The nose and cockpit are more streamlined then the old prototype. These modification made the plane heavier than the prototype.

The plane was however, never sold on the market as the partnership between HKAS and Socrux ends abruptly without explanations from both manufacturers.An interesting thing to note though is than in the following weeks after the collaboration ended, some small nations with a shore line was suddenly attacked by dictatorships via airstrikes. Most of these attacks came from the sea, and reports of the attacks shows that the enemy used extremely small planes to complete said attacks.
Planes that shouldn't have the range to do so.