Twisted Doctrine

In your Movement phase, each time you set up or select a Heretic Astartes unit (excluding Battle‑shocked units) from your army to move, it can choose to Default to Doctrine. If it does, it must first take a Battle‑shock test. Then, select one of the following: 

• Until the end of the turn, this unit is eligible to shoot and declare a charge in a turn in which it Fell Back. 
• Until the end of the turn, this unit is eligible to declare a charge in a turn in which it Advanced.