Can the same support weapon fire multiple times in the same round of combat if the support points are available? For example there is a firefight going on between two opposing forces of a squad and a machine gun. I attack the enemy squad with my squad and call for offensive support fire from the machine gun. The enemy squad calls for defensive support fire from it’s machine gun which it directs at my squad. Can my machine gun give defensive support fire even though it has given offensive support fire in this phase of fire relating to a single activation? Or is there a limit of one support fire per unit per cause.