i have two dcs versions on my pc. the stable version and the open beta version, both are the 2.5.
on the stable version the su27 works but on the open beta version, any mission, action or training... opens up with the map and not in the cockpit, not able to enter the cockpit and the training or mission is then controlled by ai. this is with the su27 and f15, so i guess its on the complete flaming cliffs 3 range.