Imported AC in campaigns yet again.

Must've been asked thousand times already but since I haven't found all encompassing answer yet, here it comes again: how on earth do you add and change the default CFS planes to something else in campaigns? I'm sick and tired of some lousy planes vs. 'cheating' AI situation and would like equalize the odds. I tried K.Baffords editor but couldn't make heads or tails of it (being rather computer ill-literate). And please, don't just tell to practise more: believe me, I have been doing nothing but that for past few days. Thanx and sorry for troubling with such an old issue 
