AdolfoWilson Hi , I have also had problems with the Su-27 campaign , I also like that plane. I already completed the mission, but I have had problems , some missions repeated them several times and never took for completion , then I knew it was a mistake. Take the missions that were not completed and analized in the mission editor , I discovered that there were some conditions were not met , for example in the last mission when the bombers must destroy the U.S. aircraft carrier , succeeded not because they did not reach the missiles and bombs to destroy to finish , and for the mission to be successful must be destroyed fleet ( all boats ) complete USA . I then changed the condition for the shoot down all the planes is sufficient to complete the mission and campaign . I have also modified other missions also had problems. Finally finished the campaign. Unfortunately the changes I made to each mission, were lost with an update. Always updating , these missions and campaigns return to their original state.
I speak Spanish , sorry if something is not understood, it translated it with Google