Unit 463: Type 89 SPG
It should be deleted
These were rare chinese vehicles, produced in limited numbers and never exported. No source reports sale of them to North Korea. Even if they are there as hypothetical chinese reinforcements there are better candidates.
Sources
www.army-guide.com
http://www.sinodefence.com
Unit 582: Type 62-II
It should be deleted.
Even if North Korea managed to put their hands on some thermal sights they would be used on recon vehicles or their best MBTs, certainly not used as gunsigths on some obsolete light tank.
Unit 42: Type 56 SPAA
To be deleted.
It is redundant (BTR-40 clone), besides the chinese Type 56 is the Zpu-4, not zpu-2.
Unit 47: Type 88K SPAA
To be deleted.
It does not seem to correspond to any reported system in NKPA service.
Some units to be added instead
1) ZSU-23-4 unit 402 from russian OOB
Availability dates 1/1971-12/2020
Source SIPRI
2) M1992 SPAA
Basically a ZSU-23-4 derivate with twin 30mm instead of quad 23mm
Availability dates 1/1990-12/2020
Source: pictures
Also
http://www.globalsecurity.org/milita...1992-spaag.htm
3) M-1977 122mm
This unit could be made in the following way:
a) Import unit 106 Type 70 122mm from the chinese OOB;
b) Arm it with weapon n.110 122mm D-30 FH;
c) Reduce speed a bit, let’s say to 20;
d) Rename it M-1977 122mm;
e) Availability dates 1/1977-12/2020.
Sources: pictures
Also
http://www.globalsecurity.org/milita...m-1977-122.htm
4) A clone of the above M-1977, but with the following changes:
a) Class 39 SP Gun;
b) Weapon n. 97 100mm 2A29 65 as armament;
c) Appropriate loadout and FC ratings for a tank destroyer;
Source: pictures
It could be used to fill the gap in the formations left by deleting unit 463 Type 89 SPG.