Would not put it past the FBI to blame their illegal gun running and money laundering operation on the military personnel or any other innocent citizen. It is safe to assume that at least some of the grenades, guns and ammo they ran to the Cartels, ended up in our cities with drug dealing gangs.
However, we do know from other reports that the DOD has stupidly been recruiting gang members into the military. The US military training will come in handy when the Mexican cartels launch their hot war against the US establishment.
That training will only be marginally useful when you consider what they are up against, not only our own military, but tens of millions of honorable soldiers who are now civilians and are quite capable of handling that threat.