These are some rules I am working on to make the Grey Knights & =I= more playable as a stand alone army. My gaming groups main complaint is aimed at their survivability.
Inquisitorial Stormtroopers
-Hellguns should have the following profile:
Range:24" S4 AP- Rapid Fire
-Hellpistols should have the following profile:
Range:12" S4 AP- Pistol
-All Stormtroopers should be equipped with a hellgun, hellpistol, close combat weapon, and frag grenades.
-Keep in mind that for only 1 more pt Sisters of Battle get 3+ armour, bolters, and faith points, and that for the same cost Firewarriors trade off BS & WS to gain a gun with +S2 and +6".
Grey Knights
-Change The Shrouding to read as follows: All successful wounds against Grey Knights must be rerolled. A psyker that passes a leadership check may ignore this rule(make the check every time the psyker shoots).
OR
-Change The Shrouding to use the new Night Fight distances and give the Grey Knights Artificer Armour.
-Keep in mind that Plague Marines for around the same points have defensive grenades, T5, and FNP.
Buy Land Raider variants, Dreadnoughts*, and Rhinos from Codex: Space Marines and Chimeras from Codex: Imperial Guard.
*Dreadnoughts may still replace their Stormbolter with an Incinerator for +15 pts, and may replace their Multi-melta with a Psycannon for +10 pts. They are still Heavy Support choices.
C/C