Retaining his line of sight, but moving clear of any straggling civillians. That's who they are after all, the unseen and the sighted are combatants in a war, and those who don't have the vision are but civillians. Collateral damage to some, wards to others. When a lady pulls her child past him, screaming in terror, Billy lines up a shot, having observed the movements of the zombie he first fired upon, and he fires again.<br/><br/>[Roll 15 + 4 (Exploit Weakness) = 19]