Several sources indicate that the R-13M1 was never exported outside the USSR. Instead, Soviet allies operated the less capable R-13M, which has been added and removed from the game several times. However, several German aircraft and the Finnish MiG-21bis in-game have the R-13M1 rather than the R-13M.
Is there a source that Gaijin has that shows that the R-13M1 was exported? Or was the R-13M1 added ahistorically purely for balance purposes?
Will Warsaw Pact aircraft in the future get historical R-13Ms?
R-3, R-13M guided missile. 2020 - Polot
R-13M1 & R-14 Atoll air-to-air missiles | Secret Projects Forum
K-13 (R-3, R-13) AAM | Secret Projects Forum
R-13M1 (AA-2D Atoll D) :: Ruslet (webnode.cz)
SOV - R-3, R-13 / AA-2 Atoll : Anti-aircraft missiles (valka.cz)