I was able to pinpont problem - RPK transmitter self activates and SNR getting hit. It cannot be turn off. Tested on Tripoli raid. Sorry for mislead - in vietnam this aint a problem.

In livia scenario:

2:00am 15th of April, 1986.
Operation El-Dorado Canyon raid against Tripoli.

Targets:
Bab al-Aziziyah barracks - 6 F-111F Aardvark, each armed with 4 GBU-10 LGB
Murat Sidi Bilal Naval base - 3 F-111F Aardvark, each armed with 4 GBU-10 LGB
Tripoli AFB - 5 F-111F Aardvark, each armed with 12 Mk.82/BSU-49 high-drag bombs

Supporting force:
6 A-7E Corsair-II SEAD (VA-46 Clansmen, VA-72 Blue Hawks from the CV-66 USS America)
4 F-14A Tomcat CAP (VF-33 Starfighters, VF-102 Diamondbacks from the CV-66 USS America)
3 EF-111A Raven ECM
1 EA-6B Prowler ECM (VMAQ-2 Playboys from the CV-43 USS America)

S-75M3 Volkhov

00:00:36, F-111F Remit-31 bombed Bab al-Aziziyah barracks, with 4 GBU-10 LGB.

+++++++++++++++++
00:00:54, SNR ON AIR


00:01:11, A-7E Corsair-II No.1, VA-46 Clansmen launched AGM-88 HARM missile No. 1

00:01:43, F-111F Remit-33 bombed Bab al-Aziziyah barracks, with 4 GBU-10 LGB.

00:02:14, SNR knocked out by HARM


00:02:15, SNR OFF THE AIR
-----------------


Total, SNR On Air Time: 1min 15sec

Screenshot:



So the final problem - self activation RPK.