Alright, looking over the list I have two options, based on whether or not I choose to keep the Brotherhood Banner. From what I can tell, I technically gain more attacks with the banner (1 daemonhammer, 1 from the Librarian, and 3 "normal" attacks), but if I drop it I can make the list more shooty. Personally I like them both, but I'm not sure which one is technically more viable.
Option 1: Keeping the Banner
Librarian w/Mastercrafted Nemesis Force Sword, 3 Servo Skulls, Might of Titan, The Summoning, Quicksilver, The Shrouding, Hammerhand
Vindicare Assassin
10x Grey Knight Terminator w/Brotherhood Banner, 3 Falchions, 1 Daemon Hammer, 2 Psycannons, 5 Nemesis Force Swords (broken down below)
10xGrey Knight Strike Squad w/2 Psycannon
Rhino w/Hunter Killer Missile
10xGrey Knight Strike Squad w/2 Psycannon
Rhino w/Hunter Killer Missile
Stormraven w/
TL Assault Cannon,
TL Multi-Melta, Psybolt Ammunition
Dreadnought w/2
TL Autocannon, Psybolt Ammunition
Dreadnought w/2
TL Autocannon, Psybolt Ammunition
This list goes for the same split idea, the GK terminator split so the Falchions, Daemon Hammer, and Brotherhood Banner go into one squad which the Librarian joins and uses the Stormraven for a delivery system. The Vindicare, Psyriflemen dreads, Strike Squads, other half of the Terminators, and Stormraven provide fire support downfield. Hunter Killer Missiles help provide an Alpha Strike capability against vehicle heavy lists.
Option 2: Dropping the Banner
Librarian w/Might of Titan, The Summoning, Quicksilver, The Shrouding, Hammerhand
Ordo Malleus Inquisitor w/Terminator Armor, Psycannon, Daemon Hammer
Vindicare Assassin
10x Grey Knight Terminator w/4 Falchions, 1 Daemon Hammer, 2 Psycannons, 5 Nemesis Force Swords (broken down below)
10xGrey Knight Strike Squad w/2 Psycannon
Rhino
10xGrey Knight Strike Squad w/2 Psycannon
Rhino
Stormraven w/
TL Lascannon,
TL Multi-Melta
Dreadnought w/2
TL Autocannon, Psybolt Ammunition
Dreadnought w/2
TL Autocannon, Psybolt Ammunition
Same deal here, the new Ordo Malleus Inquisitor joins the shooting half of the Terminator squad. This version gives an additional psycannon, Str 7 Assault cannons, and still has a very decent melee component in the Librarian and assaulty terminator. The lack of the Banner makes Tyranids a bit dicier to deal with due to SitW.