This Advanced Reaction may be made whenever an enemy unit declares a Charge targeting a friendly unit with the Automata Unit Type or Knight Unit Sub-type which is within 12" of another friendly unit that includes at least one model with the Greuso Protocol special rule and is not itself locked in combat. The unit with the Greuso Protocol special rule may make a Shooting Attack, targeting the unit that triggered this Reaction and following all the usual rules for Shooting Attacks. A unit that makes a Shooting Attack as part of a Greuso Protocol Reaction may not make any attacks indirectly (without line of sight) including weapons with the Barrage special rule or other weapons or special rules that otherwise ignore line of sight, and Vehicles may only fire Defensive Weapons. Template weapons used as part of a Greuso Protocol Reaction use the Wall of Death rule instead of firing normally. The unit targeted by the Greuso Protocol Reaction may not take Cover Saves against Wounds inflicted as part of that Reaction.