In KNDR tanks many errors and what in game not describe like real tanks. I find few data in russian:
http://offtop.ru/spanther/v6_661251__.php
Korean tank Pokphunho (US- M-2002) is total wrong. This tank analog russian T-90 and 1 from best tanks of the world. Only 1 tank in world would be best then NK Popkhunho - it's future russian T-95.
Armor NK tank like armore T-90, tank have 125mm gun, 14,5mm AA MG with AP shells. Tank can fire in mounting in speed, but South Korea tank K-2 can not fire in mounting in speed. Observation equipment NK tank like in T-90. FC NK tank best, then FC SK tank K-2.
KNDR tank Chhonmaho-5 receive 125mm gun. -4 receive new FC equipment like T-72AB, -3 receive 14,5mm AA MG and active armore, -2 receive 12,7mm AAMG, -1 KNDR copy soviet T-62A.
In it moment all.