no need to be scared of a whole bunch of lawyer-speak ... it's just English.
wordy, maybe. but easy enough, although tedious.
example.
let's say we're two guys who know lots about roofing.
I have cool new shingles, and you have a really nifty automatic speed-hammer.
when you go roof for your people (military) with my cool shingles, you have to give me a nickel per shingle.
when I go roof for my people (commercial, etc. -- anybody who's not military) with your nifty hammer, I have to give you a penny per shingle (I do more roofs than you do, and I could always just use a regular hammer but it would take me longer).
parts 3 and 4 describe the nickels and pennies.
hope that helps.
R.
