70kg per box which would also restrict the player from carrying lots of equipment. Its only drawbacks are that its small magazine limits its firing rate, it has lower accuracy than other high-end assault rifles, it is very prone to jamming, and most of its ammunition is heavy weighing at. Combined with its grenade launcher, it's a weapon for all occasions. The weapon itself is very powerful and could easily rip apart the armor of an Exoskeleton. The Tunder is very accurate at close range and fairly accurate at long ranges, in the right hands one could pop headshots at long ranges using the iron sights. Spetsnaz experts may use this weapon, along with Military Stalkers.
The Tunder was the weapon of choice of most Duty veterans and experts. In Shadow of Chernobyl the Tunder S14 isn't as widespread as most assault rifles.