But I have a feeling a ton of the weapons and intel being supplied to Ukraine comes with stipulations that restrict almost all of these options.

Are you not familiar with historical support of "moderate rebels" and so on by the US? The US has not even the slightest compunction about the most heinous war crimes. Even in western press it has been openly reported, among other things, that Ukraine is handing out guns to its citizens on an incredibly casual basis, which isn't a huge deal (if you want to be part of a gang, just join a militia) but isn't reflective of the sort of stipulations you are imagining