No, two hits will destroy a speeder. But getting two to hit is very hard and usually takes a large chunk of your ammo.
Missile tracking works great.
No it doesn't. You must be insane if you think it works as well as it should. The missile's turn rate is horrible and they can go right by objects that aren't moving. A missile will ONLY hit if the target slows down significantly for an extended period of time.
If you take the time to get a full lock-on you should hit almost 100%.
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