Hi Evrik I have now tested without ACE (using 3CB Equipment, Units, Vehicles, Weapons and CBA only) all of the mortar rounds landed in the correct position. I noticed that
the range table changes depending on if ACE3 is installed. If I follow the elevation values of the non ACE range table while ACE is loaded the rounds will land in the correct position, it seems ace is changing the range table but the mortar trajectory is not affected leading to rounds missing. I tested with and without ace advanced ballistics being enabled this had no effect.