I am stuck in FC2 in two campaigns, once with F-15 and once with Mig-29, is there a way to skip these missions and move on? I am tired in banging my head on the wall with these same missions over and over again...

In the game menu if you go to the campaign folder, you can fly any mission from the campaigns you want. (I think you get there from opening the single missions in the gui, then going up a folder level in the box on the right side of the screen - if you play around for a minute you'll find them).

You could also open them up in the mission editor.