Use your altitude to avoid fire, as your helicopter is the most manoeuvrable in this axis. When you're firing on moving objects, try leading the target by firing at where itll be when your shot reaches the floor. Flying high is good as it gives you plenty of time to react to incoming fire, but remember, its harder to hit targets with rockets and grenades. If a target is close to your helicopter, sometimes its quicker to drop down rather than pulling back to line up your guns on it. When avoiding tank fire, try and feel the rhythm of its fire and move accordingly. Dont waste rockets and missiles on soft targets like troops and jeeps, save them for the heavier targets like tanks. Explosive weapons have a blast radius, use this factor when blowing up VC camps by placing your shot between targets, thus killing 2 birds with one stone and conserving ammo. In escort missions, get yourself between your escortee and any aggressors, theyll always fire on the closest target.