Read half of that letter (not a russian, but can read, very slowly though), and some interesting points there:
Nobody from higher ups said anything about war. FSB were told to analyse all possibilities and ways the war could go. Then when the war broke out, higer ups started going ape shit, that everything didn't go to a T as they had analysed.
Kadirov is really pissed off. Almost started a conflict with the russians. He feels somebody from FSB blew the whistle on his troops, that got annihilated first days in.
Reckon they can't win anymore, there's no plan, just plodding along now. If they somehow get Kiev and remove Zelensky, they don't have anybody to step in and sign a treaty with.
Agrees as most, they won't be able to hold Ukraine even if they took it.
Nobody knows how much they lost, they kept track first 2 days, now it's all over the place. Could be 2, 5 even 10 thousand, thinks it's closer to 10000. Important note: thats without counting LNR and DNR casulties. Troops wandering off by themselves, even commanders don't know whether they died, deserted or got captured.
Their deadline is june. Then economy collapses.
Next week, one of the fronts will start to fall apart. No analytics, nobody knows anything for sure, chaos and instinctive actions.
Trying to scare the west into removing some sanctions.
Will attempt to put on Ukraine, that they secretly were making nuclear weapons.