The bottom Space Marine has 2 terrain cards on each side due to Space Marine attrition. I pulled the 'Rescue Space Marine' event card. Then I bring Brother Leon in at the bottom as Brother Valencio was still alive. What do I do with the terrain cards on the previous bottom Space Marine:
1) Do I move none of the terrain cards?
2) Move 1 terrain card from each side and place them on Brother Leon?
3) Move all terrain cards and place them on Brother Leon?
Thanks in advance,