pretty good.. you just have to somehow handle spamming the mouse button... not sure how original MC handled it.. I think they must have had a firerate... but I do remember you could send up a bunch of countermeasures... I don't think it was unlimited though..
also the original had actual munitions being sent from the ground to the click location (then exploded) which took time you'd have to account for.. may want to add that..
keep it up..