An Act of Faith can be attempted immediately before a Sisters of Battle unit acts during a phase; e.g. immediately before the unit moves in the Movement phase, shoots (or runs) in the Shooting phase, or strikes blows in the Assault phase. To attempt an Act of Faith, select the unit and reduce your Faith Point total by 1, then roll a D6 and add the following:




+1 if the unit is led by at least one of the following: Sister Superior, Retributor Superior, Dominion Superior, Seraphim Superior, Celestian Superior or Mistress of Repentance. 




+1 if the unit has been joined by at least one of the following independent characters: Canoness, Ecclesiarchal Confessor, Saint Celestine, Uriah Jacobus or Arch-Confessor Kyrinov. 




+1 if the unit has taken at least 1 casualty. 




Note that all modifiers are cumulative. If the total is less than 5, then the Act of Faith fails. The Faith Point is lost and nothing happens. If the total is equal to or greater than 5, the Act of Faith is successful. The unit immediately gains a bonus and/or special rules until the end of the phase. The nature of the bonus depends upon the unit that is using the Act of Faith, as detailed later.




Independent characters that have the Acts of Faith rule benefit from any bonuses received by the unit they are with when an Act of Faith is used. Similarly, units that have the Acts of Faith rule benefit from any bonuses received by an independent character that has joined the unit when an Act of Faith is used. 
If both a unit and an independent character have an Act of Faith that takes effect in the same phase, you must attempt each Act of Faith separately. 




For example, if a Canoness joins a unit of Celestians then you would require two Faith Points (and two Acts of Faith) to use both the Passion and the Hand of the Emperor Acts of Faith in the Assault phase.

Profiles:

Act of Faith
Holy Fusillade: This Act of Faith is used in the Shooting phase. If successful, the unit’s weapons count as being twin-linked until the end of the phase.

Wargear
Frag Grenades: Models equipped with assault grenades don’t suffer the penalty to their Initiative for assaulting enemies through cover, but fight as normal.
Krak Grenades: When assaulting a vehicle, each model using Krak grenades can only ever make one attack, regardless of the number of Attacks on their profile and any bonus attacks. Against vehicles, Krak grenades have an armor penetration value of 6+D6.

Abilities
Shield of Faith: Models with the Shield of Faith special rule have a 6+ invulnerable save.
Scouts: After both sides have deployed (including infiltrators), but before the first player begins his first turn, any scouts may make a normal move. This is done exactly as in their Movement phase, except that during this move, scouts must remain more than 12" away from any enemy. If both sides have scouts, the players roll-off and the winner decides who goes first, and then alternate moving these units. If a unit with this ability is deployed inside a dedicated transport vehicle, it confers the scout ability to the transport too. This rule also confers a special outflank move to units of scouts that are kept in reserve.

Shield of Faith:

Models with the Shield of Faith special rule have a 6+ invulnerable save.

Scouts:

After both sides have deployed (including infiltrators), but before the first player begins his first turn, any scouts may make a normal move. This is done exactly as in their Movement phase, except that during this move, scouts must remain more than 12" away from any enemy.

If both sides have scouts, the players roll-off and the winner decides who goes first, and then alternate moving these units.

If a unit with this ability is deployed inside a dedicated transport vehicle, it confers the scout ability to the transport too.

This rule also confers a special outflank move to units of scouts that are kept in reserve.