It was carrying several MRAP vehicles.
One or more broke loose on takeoff, dooming the flight.
Parts of the plane were left on the runway, iirc.
An MRAP weighs many tons.
http://i.dailymail.co.uk/i/pix/2013/06/03/article-0-1A201C3F000005DC-709_634x421.jpg
yeah those are huge heavy suckers. armored personnel anti-mine dealies. you can just see the tail kind of go down and arc right, sweeping under the plane, totally looks like a bunch of weight went back into the tail.
