I have been getting stuck on the missions where your objectives include having to kill 50% or 66% of all fighters--meaning that 50% or 66% of the fighters must be killed by the player and not by any of the wingmen. The problem is that if I call off my wingmen, either I or the ship I am escorting will get swarmed with all the alien fighters since the wingmen are not keeping them busy. While I can manage to fight through all the fighters by myself without the wingmen aiding me, in missions where I must escort another ship, it gets blown up before I can take down enough fighters. However, if I let my wingmen keep the fighters away from the ship I am escorting, then they kill too many of the bugs for me to make the quota! Can someone give me tips on this kind of mission?
Seriously, maybe you should first try it on a lower difficulty level and then, when you beat it on the next higher. I know in SOPS it is sometimes quite hard to achieve these kill percentages (it was for me at least) but in WCP it is quite possible to do it, even on nightmare.