Quick question on GMS

Is it plausible that a GMS should:

A) On one hand have an easier time hitting a target at middle ranges
than at 
short range, since it has more time to home in on the target;

B) on the other hand be easier for ADS to take out the further it has to

pass through an ADS' zone of fire, since the ADS _ALSO_ gets longer to
lock 
in on it?

3B^2

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