I remember...
I did a little reading, but it was a lot to take in and I was excited to see what cartoon airplanes would look and fly like, especially against other people (this was my first online game). I got in a plane and took off which was fairly simple. Saw another aircraft in front of me with a green icon so I followed him. Didn't know there were three countries or at that time, green meant friendly, but he didn't both me so I didn't bother him, just enjoyed the countryside and the experience of "flying". All of a sudden another plane showed up, with a red icon. He and the green guy started flying around each other, I stayed out of the way. Red guy killed green guy, then headed for me. I tried to fly around him, but died quickly. Probaly a good thing since I didn't know exactly how the may worked, where I was, and what I should do to get home. Tower was a familiar sight.
I recount this, my first flight in Aces High to focus on the need for some small info blurb (MOD) for newbs that they can't avoid the first time they fly and tells them they are in a three-way war and that they take-off and land at green bases. Green guys are countryment, red are one of two enemies, etc. Further it could list that they have options to go to the TA to learn, as one of the green guys to help, etc.