RE: What is combat exactly
R/C Combat in a nut shell is:
1) Tie a steamer onto 2 or more fuel-powered planes. Then, try to remove the streamers off of the other plane(s) with your wing or prop. This is how RCCA, Gremlin, ACES and other types of combat work.
2) Using slope gliders, try to hit the other glider(s) and knock them out of the air. This is known as "full contact" combat.
3) Using electric-powered airplanes, use a electronic modules in each plane to cut the other plane's power. This is how Hobbyzone Fighterbirds (and a few others) work.
HTH,
D