Most of the guns in the game are perfectily placed into the loot economy and damage tables. But 3 guns still need some changes, they are the Asval/VSS and the AugA1.

The AugA1 has a especific respawn at the bunker, where players go only for high loot, that means that when the players enters the bunker they will already have a better gun tha the AugA1. Making it one of the most unused guns in-game. Changing its spawn to military loot tier 2 would solve that.

The ASVAL/VSS have a similar problem, they dont just spawn at contaminated, they compete for the players choice against the M4A1 and the AKM, making it impossible a player choose it. A way to fix it is to attend to real life, the ammo used on the 9x39 is stronger than the 556, but has less muzzle velocity since its supersonic. So the final damage of the standart 9x39 round should be closer to the 556 from a M4A1, and using a 9x39AP round should have a final damage around a 556 AugAX. Maybe also balancing the spawn and adding it also to the bunker, would make players have a difficult choice to make looting there.