Gambits.
Thrall of the Red Thirst lets you ignore focus negative modifiers caused by wounds lost but you don't get outside support. Its a trade off that sometimes works, but not really a top pick.
Additional Detachments.
Revelation Host is very specific and fluffy: you get up to 2 assault squads and 2 dawnbreaker cohorts.
Wrath of Angels allows you to get closer to the enemy that shot at you. Take a full move toward them. Its that simple. Oh, and if you get very close (6 inches) force them to take a cool test or be pinned in place by your glory or vampiric disposition (delete as appropriate).

