Overall a good summary of the facts at hand, there are internal inconsistencies in the report itself, but I think you captured most of them.
Just noting that the detail plan is from Butler, but the after action report is from Beaver. Not sure how separate these two are from each other.
I know this is a bit on the speculative side, but I personally suspect that there exists a possibility that the detail plan was changed after the events of J13. And it has to do with Slide 2.
When looking at any document, and you can even see it in your own slides, every person has their own style when making a document. If you add graphics to a map for example, a person tends to use the same font, color, methodology, etc. In your case you have screenshots of documents, many titles and sometimes a paragraph to explain the slide. The point I trying to make is that in slide 2, the two maps differ in style.
At the minimum two different people worked on the document, probably on two different times. If it was just this then I would let it go, but there is, in my opinion, a significant inconsistency. It has to do with the Counter Sniper Positions document released by Grassley. Page 4 to be exact.
They had printed maps at the start of the day, supposedly the exact positions of the snipers. If so, why was there a satellite map, with hand drawn position of the beaver sniper taped to the wall instead? If the snipers had the positions map in the detail plan, why wasn’t it taped to the wall?
A niggling thought also gets into mind. Would Secret Service give the LEO’s their call signs, Hercules, beforehand? Wouldn’t they give those names right at the last minute? Perhaps a former SS agent would give some perspective on this.
This is why I keep the possibility open that the detail plan was changed afterwards to form a narrative. Pure speculation of cause.