How many nva were killed in Vietnam War?

Discounting AAA gun crews, SAM site crews, transportation personnel, engineers, and just counting the NVA infantrymen & tank crewmen, possibly 500,000 men thru out the war. A vast amount of NVA casualties were attributed to the B52 Stratofortress...this weapon destroyed more men than any other weapon during the war...it was also the most feared weapon by the communists (both NVA & VC).

Hanoi has hinted that approximately 2 million communists (total) died in the war.