6000 rounds per second? I dont know what it is but most definetly its not a machinegun. MG-42 one of the best machineguns with incredible rate of fire could deliver 1200 rounds per MINUTE. And ofcourse this is only theoretical rate of fire. Nobady will fire 1200 rounds per minute. If you use long ammo belts 200 -300 bulets you would have to relode at least 4 times. Not to mention that you would have to replace barrles few times becouse they would be red hot. But on the other hand range should be much greater about 1 km would be good.