I watched that press conference - looked like they had gone with the Strangelove 'war room set' theme.
Was intriguing: they seemed to want to put forward several contradictory ideas which even their own radar data refuted. The fighter they identified (Su-25) and the armament it carries aren't up to the task they are suggesting it carried out (and not consistent with the physical evidence thus far) - even if we now pretend it can reach 30kft as per the 'as if by magic' change to the spec on the relevant wikipedia page shortly after the press conference (and contradicting the manufacturer's
own data). No prizes for guessing who that edit's
attributed to.
Their radar data has the (assumed) Su-25 only popping up briefly after the event, not shadowing MH17.
Then in the same media event they present some optical satellite imagery of what they said were Ukrainian operated BUK missile launchers. Supposedly in the incident area, though that's not very clear, much like the imagery itself.
So I can't work out whether their thesis is that the Ukrainian air force shot it down air-to-air, or the Ukrainians tricked separatists in to shooting it down, or a Ukrainian SAM shot it down.
(Their subsequent discussion of the US IMINT data seemed to highlight a complete lack of understanding of the systems involved, well that clearly in the public domain, and orbital mechanics, which is more than a little odd unless the Russian military is populated with conspiraloons
).