The black and white flag with the blue line, The flag on the left is that of Vanguard America, a neo-Nazi group. It features the fascist bundle of twigs and the Roman eagle.
The right stance to work with any firepower, such as the Kalashnikov Machine Gun, is very important. The accuracy and rate of fire will depend on this, since the better you control the recoil, the more bullets you can fire in one burst towards the enemy, without moving the barrel to the side.