Askaari while reporting to his superiors both in his house and in the general guards/military tell them.

With such wide spread and mobile groups that the Catapults should have more area effecting rounds to fling such as flaming pitch to not only hit more in the groupings but to deny portions of the fields of battle to the enemy. Forcing them to move only through certain places that can open up more useful spell attacks from our mages and archers alike, as Lord Sami Atianna proved with his wind wall spells. By all means keep the solid rocks for when they bring any siege weapons to bear upon the city. Creating corridors to funnel them through will also make it easier to close those corridors behind their troops that have already made it through after being widdled down by arrow and spell, will then be denied reinforcement in time to stop us from finishing the rest, as the Frost family fought upon the wall.