A quick note to all reading this: Not everyone finds doing the same thing easy. If the guide is actually making it harder for you, then ditch it and try out other things. I am making these because, to be perfectly blunt, the ones Sierra put on the CD suck. Also, I have beaten both campaigns on easy (8 times each) and normal (1 time each) only. This is how I did it, and sometimes my methods have even failed me, due to how fast I was able to perform the action at the time. If you find a way that works better for any part, PM me with which mission it is and what part, and I will add a note there.
1 more thing, I'm going to lock this topic to prevent commenting until I have finished posting it all (it might take longer, 'cause I have to actually go through the campaign again to remember some missions).