This article is problematic in that if STRELKOV is indeed GRU, as the Ukrainians have tried to document (from Russia sources and photos), then he is not an independent actor but a puppet for Putin.
Strelkov doesn’t fart without permission from PUTIN and the FSB. If he did, he’d be dead and buried in a wheat field in Ukraine.
You don’t disobey the KGB/FSB and live. You don’t challenge the boss and live. Accidents happen. People disappear.
That’s the Moscow Way and Putin is definitely “Old School”.
Remember there is a rivalry between the KGB and the GRU.