Shotgun and M-4 and niepet. Although, if you increase the power of the AK-47, then Russian Kalash is preferable)
It's a mini Uzi, not a Mac-10. My favorite is shotgun, M-16, AK-47, flamethrower, Uzi, Colt 45 caliber, bat, rocket launcher, Molotov cocktail, grenade, sniper rifle.
Elephant? In the game, the sniper does not shoot with Magnum cartridges, it will have a smaller caliber ... It is rather the same SV that American soldiers used in Vietnam - Remmington 700, it shoots NATO 7.62 mm, chamber capacity - 6 rounds.
AK-47 and M16. With the help of the latter, you can quickly play surgeon Ilizarov, good at a long distance. AK is good when you need to kill someone, but it's a pity to waste cartridges from the M16.
In the left hand of the M-16, in the right Bazooka, Molotov Cocktail in the teeth and forward to fight against the cops, SWAT, FBI, and the military.