Made it for myself, but then decided to share)
This is edited RHS configs allowing you to play on russian side. (Just changed RU units side=0 (OPFOR) to side=1 (BLUFOR) and US units side=1 to 0). Without this configs russian units sometimes still can start shooting at you and US units can tell you about friendly fire if you attack them.

All you need is enable this mod im mod menu and configure units in Mods menu in mission (russian units to blufor, green or resistance and us units to opfor)

https://drive.google.com/file/d/0ByXp2Dv_DuIjb0xOdWdpMTZKb2c/view?usp=sharing