From the sounds of it, someone who didn't like him taking mostly republicans with him on this trip...
But then again, someone who knew the inner workings of the army, his staff and his qualification was in on it.
Many years ago I worked at Army Selection Boards. The quickest way to ruin a career, especially as an officer, is to mishandle government funds or falsely sign an official document. Booze and having an affair take down many otherwise good folks, also.
So, why not schedule time at the range with some CANG unit?
This is really an odd story, unless he didn't want to go to Iraq.
Of course, noone would want to go to Iraq, but I suspect that it would be his duty as a General.
The side arm for generals used to be a pistol, and the shooting course for that is actually pretty simple.