Rev, old boy, what damnes your opinion most of all is the fact that McVeigh admitted to doing it, explained how he did it, and had his story corraborated by multiple sources... one of which I worked with at the time of the bombing. Further, you clearly have no idea about anything military - there are regularly Ryder trucks, U-Haul trucks, etc. all over military bases. If for no other reason, than at the time of the bombing, our operational vehicle status was at under 50% on Ft. Sill, OK - meaning over half of our vehicles were down for repairs - we rented a LOT of trucks for a variety of purposes. Futhermore, soldiers rent their own vehicles for other purposes, and in most cases, there's nothing specifically wrong with driving non-military trucks into military motorpools.
One of my co-workers at Ft. Sill was Spc. Charles Davidson, who had worked alongside McVeigh when he was still in demolitions. He was in no way surprised when the OKC bombing happened. We were in the field on a training exercise, and quite suddenly, we were all put into checkfire. Chuck was pulled from his ammo truck and questioned intensely for several hours, simply because he had been in the same unit as McVeigh. In fact, when they pulled him and someone said, 'OKC bombing', it was Chuck who first mentioned McVeigh.
The ragtag group of civil revolutionaries that McVeigh belonged to had existed for several years already, but had never been believed to have the balls to pull off much of anything. If you can accuse the government of anything at all in the OKC bombing, it's general incompetence when dealing with internal terrorism.
The mechanical details of the bombing are precisely known, and most of the damage was done not by the explosion itself, but by the disabling of a front support column on the building... As federal buildings go, this one was pretty poorly designed.
McVeigh's own admission sets the responsibility cleanly on his head - and the video footage was analyzed several times by several different experts, and all conclude that the person in that security cam video was NOT McVeigh. Besides which, McVeigh admitted to not being there at all.
Granted, my statements are largely anecdotal; but unless you're going to decide that I'm in on the conspiracy too, you're going to have a hard time convincing ANYONE who was actually in OK in the military at the time that this was an 'inside job'.
As far as burden of proof goes, since McVeigh himself made a full confession, the burden of proof is on YOU to prove that this was an inside job. It's on YOU to prove that the military never rents vehicles (which will be impossible, because we did). It's on YOU to prove that the man in the video is McVeigh (again impossible, because it's NOT). And it's on YOU to prove that either piece of 'evidence' leads to a conclusion of 'inside job'.
Considering McVeigh's military background, that could have been his van, which he took to the base to load up with explosives or stolen arms or whatever.
Considering his circle of friends, the man in the video could have been disguised to look like McVeigh to act as an alibi.
Considering your lack of knowledge of the military in general and Oklahoma specifically, I have to wonder what gives you the authority to declare OKC an inside job.