- Troopers must apply the Difficult Terrain rules when their base is inside or in contact with a Difficult Terrain area and they declare a Movement Skill such as Move, Cautious Movement, Jump, Climb, the Special Skill Assault (in Active Turn), Dodge and Engage (in Reactive Turn).
- Difficult Terrain also affects troopers who make base contact with it during an Order.
- Entering base contact with a Difficult Terrain area immediately and automatically ends the trooper's Movement, regardless of its type.
- If the trooper chooses to continue to move through the Difficult Terrain area, he must declare a new Order and suffer the following effects:
- During their Reactive Turn, troopers in Difficult Terrain that declare Dodge or Engage or fail a Guts Roll can move no more than 1 inch.
Movement through Difficult Terrain. Example 1
A trooper in Active Turn with a MOV Attribute of 4–2 is outside a Difficult Terrain area. She declares the Short Movement Skill Move and makes contact with the Difficult Terrain, whereupon her Movement ends immediately, even if she would normally be able to move the rest of her MOV (if she had moved 3 inches, she would forfeit her remaining 1 inch). She would need to declare a new Order to keep moving, and for the purposes of that Order her MOV would be 2–2.
Similarly, in her Reactive Turn, she declares Dodge outside the Difficult Terrain area, and her Dodge moves her into base contact with the Difficult Terrain, whereupon her Dodge movement ends immediately, even if she had not exhausted it.