As for MANPADs, again the Taliban / Chechens don't need any training whatsoever from Iranians....They'd teach them a thing or two in all reality.
No, the notion of Iranians teaching the Mujahideen or Taliban about fighting in Stan....is just foolishness. It is not needed.
But as I said earlier...They will always use weaponry...
The IED technology has evolved, and the Chinese MANPADS are not identical to our Stingers. I do think every tool has its own idiosyncrasies. When we field a new weapon, we send trainers to our soldiers. Plus, the people Iran is training are probably not the very same ones who’ve been fighting for the last 30 years.