I have to say that they nailed this movie pretty well.
Basically all it does is tell the story of what happened in Mogadishu on October 3, 1993. They didn't focus on character detail that much which to me is a good thing. There are just too many people involved to go into detail with them all. Going into too much detail on certain characters and not others would take away what some did and would lessen their sacrifice. So, they stuck to just the story. Good move.
They compressed the story some, changed a few names, and merged some characters into one character This was done to get the story down to a movie time frame and to protect certain characters identities as they are still serving.
It's very accurate as far as weapons, equipment, uniforms, etc. They used the exact helicopters that were used in the original mission in 1993 with the 160th SOAR.