Back to your original questions:
1) Do Javelin-type missile home in on targets at all? If not, why do they have a listed turn rate?
- They home, but they have a sucky turn-radius and can be easily side-stepped by the AI. The better the speed and turn-radius, the greater a missile's chance to hit.
2) Can a missile "hit" a flare and destroy it? Or does the flare always burn for a fixed amount of time?
- A missile will hit the countermeasure and both get destroyed. If no missile hits the countermeasure, it will fizzle out.
3) When I hear "incoming missile", I immediately drop a flare. But, assuming that I get lucky with the 70, 80, or 90% chance of decoying the missile, are there still circumstances where it could hit me? for instance:
- Don't drop your countermeasures as soon as you hear the warning. Wait until the missile is close (listen to the warning pings), drop your CM and then turn hard away.
a) Missile does not pass within range of countermeasure: For instance, I drop a flare behind me, but the missile comes in from the front or side.
- The closer the CM is to you, the better your chance of missile avoidance. No matter what direction the missile comes from, try to drop your CM at the last possible instance.
b) Flare leads missile to me: for instance, I drop the flare straight behind me, but the missile is coming from straight ahead...
- Same as above. Wait for the missile to come close, drop your CM and then bank hard. The missile should re-acquire your CM as its new target - it depends on the sophistication of your CM. PS - I can usually just shoot a missile thats heading towards me. As soon as I hear the launch warning from oncoming AI, I just lay down a wide spread of fire infront of me - works pretty good
I haven't hardly used missile at all, so I guess I'm more concerned with avoiding them