This hypothetical composite theory
"Oswald framed by conspirator shooters" and "Oswald part of some plan to infiltrate Oswald into Cuba after the shooting by some other shooters"
As I understand Walts theory (and correct me if i have misunderstood)
1. An MC rifle WAS found on 6th floor. near the rear staircase, between the 2 rows of boxes which were NOT in the configuration as seen in the still photo of the rifle, because its admitted that some boxes were moved to facilitate the photo taken of rifle as it lay on the floor. And this is based somewhat on Wietzmans statement of having been looking under a palette, when Boone then shined a light into the gap between the boxes and saw the rifle. Weitzman, however , said the rifle was "well hidden" and "covered with boxes" so there is some doubt that Weitzman actually SAW the rifle,
from ground level, with Boone shining the light
from above into a gap between 2 stacked walls of boxes , as the wall of boxes had not yet been "destacked" and some removed for the photo to be made.
2. The MC rifle was planted BEFORE the shooting occurs, and this MC rifle was NOT FIRED.
3. Whatever no. of shots were fired from the SE 6th floor window, are from some other rifle, those shells heard hitting the floor, are Harold Norman misinterpreting the noise of the rifle being used, or there were shells that fell, and picked up by the assassin, and Luke Mooney must have seen some other shells, or Luke Mooney is BS.
4. Lee was aware of some part of this plot, but was not aware that JFK was actually going to get shot, just that it was a LARP gathering to create the illusion that JFK was shot, and that Oswald was the assassin, to then have Oswald "escape" and that would convince Castro that Oswald was a real assassin/Marxist and would thus allow Oswald into Cuba as a "defector" and comrade for the cause.
I can only say, that no. 1 is about the only part I can agree with and in fact, may be probable. The other 3, are imo, very improbable, because why not just USE the MC rifle and thus make it even MORE convincing Oswald was the asssasin, if that was the plot.
So the MC rifle being fired, at least 2 shots, by some conspirator, whom had Oswald have possession of that rifle for some time previous, seems the easier way to set up Oswald, either as some plot to inflltrate Oswald or outright make Oswald the patsy.