One of the worlds fastest intercept jet fighters, capable of over Mach 3. Though not as advanced as the MiG-29, or any of the mighty Sukhoi aircraft. The MiG-31 is a long range fast attack and intercept fighter, with more hten 20 hardpoints for missiles, bombs, and everyother type of thing that go boom when they hit something, along with it's ability to be able to out run almost any missile, almost every missile the U.S. has, make the normal MiG-31 "Foxhound" a deadly opponant. However, later after the MiG-31, MiG started making the MiG-31M "Super Foxhound" or "Fox Hound Mk. II" which had improved avionics, improved nozzels, and many more improvements which made the MiG-31M far greater then the MiG-29, and even some Sukhoi aircraft, along with many of the modern U.S. planes. The improved engines boosted the 31M's top speed to Mach 3.4!!!!! It also had, newly made wingtips to house the massive EMP's(Electro Magnetic Pluse) which could jam all electronics near it, excluding the host aircraft. Unlike most modern U.S. fighter, the Russian MiG-31 and MiG-31M don't need stealth to do their job, because, well, who needs stealth when you can go in, and get out without them even knowning you were there until they got the three massive sonic booms eh?
I was in my MiG-31 and a stupid American pilot came up in his F-15 and fired off all his ammo, I just gunned the throttle and out ran it all, then turned around and whooped his ass!