Impact (X) "On a successful Charge, a Model with the Impact (X) Special Rule temporarily increases a Characteristic by 1."
If a Unit that includes any Models with the Impact (X) Special Rule or any Models that have any Weapons with the Impact (X) Special Rule, and that Unit makes a successful Charge, then this Special Rule is triggered. Once triggered, until the end of that Assault Phase, when making Melee Attacks for Models in that Unit, each Model or Weapon that is selected for one of those Models, that has a variant of this Special Rule, gains a modifier of +1 to any Characteristics that is the value of X.
Vanguard (X) "A Unit that includes Models with this Special Rule scores fewer Victory Points for controlling Objectives, but can score Victory Points destroying enemy Units that hold Objectives."
A Unit that includes a majority of Models with the Vanguard (X) Special Rule may only ever score 1 Victory Point for Controlling an Objective, regardless of that Objective's value (see Core Missions in the Warhammer: The Horus Heresy - Age of Darkness Rulebook). However, the Player that controls a Unit that includes a majority of Models with the Vanguard (X) Special Rule gains Victory Points equal to the value of the X in the Vanguard (X) Special Rule, in addition to any Victory Points scored for controlling an Objective, whenever either of the following two statuses are fulfilled:
- If an attack made for a Unit that includes a majority of Models with the Vanguard (X) Special Rule causes the last Model in an enemy Unit that is Controlling or Contesting an Objective to be Removed as a Casualty.
- If a Unit that includes a majority of Models with the Vanguard (X) Special Rule has at least one attack made for it in a Combat that results in one or more enemy Units that had at least one Model within 3"" of an Objective at the start of that Assault Phase either Falling Back from Combat or being Massacred.
Note that the Vanguard (X) Special Rule may only be used to score Victory Points once per Objective per Player Turn - no matter how many enemy Units were Controlling or Locked in Combat near that Objective.