land mode is like your shooting from land. example, if you shoot withe the same aim it will hit the same spot. this would not be true if your doing mortars from a moving truck or a boat. hence land mode. for sea mode the guns remain stationary after each shot. land mode the guns are always adjusting to aim at a given target. hence land mode is how you would want the guns set to be guided in by observer.
i still like the idea of sniping. everything can be sniped with the correct knowledge of tower and map room placement.

kudos to those who snipe. we dont always have to be in uber hard mode, let alone throwing in random error to dumb down a guys ability to shoot. id bet a dollar the army knew exactly where a shore battery was in world war two. we dont have wind or waves so we get a snipers best day.
