Challange: Soviet in the Sri Lankan Civil war

The official name of Sri Lanka is Democratic Socialist Republic of Sri Lanka according to Wikipedia. It got me thinking, how can the Soviets become involved in a similar role as in Afganistan and help fight the pretty cool guerilla/terrorist group, the Tamil Tigers?
 
The Tigers would transform from terrorists to freedom fighters in the Free Press overnight. Other than that, I have nothing concrete.
 
Top