Guerilla Tactics

At the opportune moment, Space Marine infiltration
units slip away from battle, only to relocate ready to
strike the foe again.
{t}At the end of your opponents fight phase, up
to two PHOBOS and/or SCOUT SQUAD units
from your army, or one other ADEPTUS
ASTARTES INFANTRY unit from your army.
Remove those units from the battlefield and
place them into Strategic Reserves.
Each unit selected for this Stratagem must be
more than 3" away from all enemy models.