All of the UAZ469s has wrong default occupants derived from USSR vehicles.
Lists of affected prefabs:
{22B327C6752EC4D4}Prefabs/Vehicles/Wheeled/UAZ469/UAZ469_PKM_FIA.et
{F7E9AA0C813EABDA}Prefabs/Vehicles/Wheeled/UAZ469/UAZ469_FIA.et
{E72D78E7F45532EC}Prefabs/Vehicles/Wheeled/UAZ469/UAZ469_UK59_FIA.et
Also, both mounted UK59 and PKM have US Rifleman (so it's a bug for Soviets too):
{E2B38E7E088E3474}Prefabs/Vehicles/Wheeled/UAZ469/VehParts/WeapMounts/UAZ469_weapon_mount_6T5_PKM.et
{B3D999A12F99DB13}Prefabs/Vehicles/Wheeled/UAZ469/VehParts/WeapMounts/UAZ469_weapon_mount_UK59.et
Game Version number: 1.4.0.45
Modded?: No