I flew Hueys in Vietnam, both slicks and charlie model gunships. I will say that this is the best flight model for a Huey that I've found. That being said, there are things that happen in campaign missions that simply would not happen in real life. For example, losing sight of an aircraft in formation flight and not being able to find him again. You would talk to each other on the radio and reform. In this sim you lose the aircraft and all of a sudden you fail the mission. Then you can't save the mission progress so you have to fly the whole thing again. I don't have the time to do that. I would like to proceed with the campaign w/o restarting all the time. The developers should fix this pronto!