[Smersh]

Just to sum everything up, after more than a week of looking into T-62 designations, and many posts with different info, I'm going to leave out "K" command tanks and protoypes since they are not represented in the game:

T-62:(1961-1962*) baseline T-62. In 1969 some T-62s began produced with 12.7mm AAmg ,DSHKM. In 1975, which is the same year serial production ended, T-62s began being retrofitted with a laser range finder, KTD-1.

*depending on source, Russian sources say 1961.

currently in the OBB the T-62 (unit 17) is introduced in 1962, the model with the AAmg is called a T-62M (unit 18) and is available starting in 1971. The variant with the laser range finder is called T-62 M1975 (unit 19), no problems here.

T-62D:(1983) T-62 with "Drozd/Arena" system. Mostly used in Naval tank units.

Currently in the OBB the T-62D is only available in CS-MBT formations. But Naval MBT formations have the T-55D, missing the T-62D.

T-62M:(1983) major modernization upgrade, includes KTD-2(or 1)laser range finder, ATGM "Sheksna" missles, and new ballastic computer. Also includes Optional brow armor and side skirts. Variant with the V-46-5M engine is called T-62M-1*. Variant without ATGM launcher is called T-62M1. Variant with "Drozd/Arena" system is called T-62MD.Variant with ERA armour (instead of brow) is called T-62MV(1985).

*all T-62 with the V-46-5M engine add "-1" to designation examples: T-62M-1, T-62MV-1, T-62M1-1.

currently in the OBB, the unit with T-62M designation is unit 18 which is the model with the AAmg. The true T-62M is given the designation T-62M1/BDD (unit 21/22). This is incorrect since the unit does have an ATGM launcher. As far as I know, unit 23 is also called T-62M1V, but also has missiles.

T-64 M1984?(1984) according to one source, this is a T-62 fitted with brow armor, used during the afganistan war. This variant is in the game (unit 20), but is suprisingly it's given snow camo. maybe a note should be made on the unit, identifying it as a special variant used in Afganistan, and not part of the regular T-62 variants.