This is a false news. He would be an adviser, not the commander. The Arabs (no offense intended) can't see a Pakistani command them. We all know that. They still look at Pakistan as a tier III nation. 10 years from now, their stance on Pakistan would be entirely different, I am sure of that.
It is more or less like a consultant to provide statergy to the Arab nations. And they may hire may more like RS too...
But the way, some Pakistan posters are so blind followers towards Arabs is really surprising...