The Rail Gun is the artillery military unit of the Future Era.
Versatile artillery unit in attacking matters. Works as the counter of all reactive armor units (assault tank, battle fortress and C.R.A.B Mech) as power shot skill ignores some defensive skills. Can target flying units unlike any other artillery unit, so it's not totally vulnerable against those.
Low movement and recharge skill makes the rail gun ineffective against ranged and fast units or miscellaneous combos.