Re: Neither one nor the other.
The mere fact that the mainstream press is slobbering...
All perfectly normal. The usual suspects are acting as the usual suspects do, ie acting from the same hymn sheet. 51 current or former intelligence officers say this has all the hallmarks of a Russian disinformation campaign. Maybe it's real, maybe it's not, maybe it's something NATO's leaked to feed misinformation to Russia. It's a game everyone's playing and both sides try to manipulate and control shape the narrative.
But from what I've seen, there are several versions of the documents floating around, usually photos of printed materials. Some do appear to have edited casualty estimates to favor one side, or the other. This is an interesting project-
https://en.zona.media/article/2022/05/20/casualties_eng
Mediazona, working with BBC News Russian service and a team of volunteers, continues to collect data about the casualties sustained by the Russian military in Ukraine. These numbers do not represent the actual death toll since we can only review publicly available reports including social media posts by relatives, reports in local media, and statements by the local authorities.
So a semi-open source project to try and provide estimates. Neither of the two partners are exactly neutral, or impartial wrt to the Russian government (or 'regime'), but the methodology appears sound. But the numbers diverge widely from 'official' casualty estimates given out by the US, UK, Ukraine, NATO or even the Institute for the Promotion of War. Casuality estimation is an inexact science though, because reports use different metrics, ie counting deaths, or counting deaths plus wounded, then differentiating between wounded that can rejoin vs those that can't.
There's also some common sense. If Russia's suffered 200k+ and Ukraine <50k, then.. how? Most of the conflict so far has been artillery driven, and Russia's outgunning Ukraine by 6-8x, and has significant numerical advantages in number of artillery pieces and volume of fire. It could be that Ukraine's artillery is much more precise and effective, or it could be the usual fog of war.
Hopefully both sides will come to their senses soon and there'll be serious attempts at peace negotiations. If not, actual casualty numbers are just going to keep climbing.
(oh, and I do not have any copies, won't link to any I've seen, or comment on any of the specifics. If they are classified docs, they're classified docs)