Veterans of the Long Vigil

•At the start of each battle round you can select one Chapter Tactic or Successor
Tactic from Codex: Space Marines. If you
do, then until the start of the next battle round, this unit has that Chapter Tactic or Successor Tactic instead of Xenos Hunters.
•You cannot select the same Chapter Tactic
or Successor Tactic more than once per
battle.