You might want to check the after action reports. Tillman was operating with an Afghani in local garb. They were, IIRC, attempting to get eyes on some Taliban who stopped the tail-end of their convoy. The gunners took the Afghani-ally and Tillman under fire.
What’s the range on a Ma-Deuce? It’s considerable. You’d need binoculars to ID the targets among the rocks above the convoy. And if they spotted the Afghani first...
You mean the official aar that covered up that it was a friendly fire incident?