It's so hard to tell if something is true these days. Generally, if something smells the least bit fishy, just does not sit right, then I tend to not believe it.

For this to be real, the person claiming to be a whistleblower, it seems to me, would have to be reporting from a standpoint of what he already did with the crates he says has the guns, ammo, grenades, and not what he plans to do with them. He also would not say I plan to take them to another "secure" location, "that I own". The bad entity surely would easily find out where that location is.

Also I highly doubt that if the bad entity intended on delivering crates of such weapons to the mass of foreign devils, that they would trust the plan success on his lack of action. Army would not hinge plan on single point of failure.

Also, the smart thing to do with the weapons, if he had the ability, it not to make them unavailable to the refugees, but to make them inoperable by filing the firing pins, or removing the carriage springs, or something along that line. In doing this, when the AK's failed to fire, the suspicion might fall along the procurement chain and not directly on him.

Lastly, if all of this is true, the enemy will probably disappear him, and he would surely know this, so why would he not load all the crates up, and dump them on the steps of the BBC, or some other public venue such that the evidence could be be denied.