An LABC that takes full advantage of its cruiser missiles and strafing ability can keep most siege cruisers off at a distance while dodging long ranged mortar and forward gun potshots - since that tactic invalidates kiting, the cruiser will either be forced to run for backup or try a head on charge - the head on charge, since the BS turrets cover most angles, and the core of the LABC is good enough for sustained mortar fire, should end with the SC being overpowered.