This list is designed to outmanuver and close with enemy forces. I'm not certain if it has the firepower to take out mulitple landraiders or monoliths. Or if it has the models to give it staying power.

Divergent Marines with Grey Knight Allies

Advantages
>Blessed be the warriors
>Suffer not the works of heretics
Drawbacks
>Flesh over Steel
>Die Standing

HQ (649)
-Librarian w/Terminator Command Squad (364)
 > Epistolary w/ Terminator Armor, FOTA, and FOTD
 > Terminator Command Squad w/ 4x marines and 2x assault cannons
-Grey Knight Brother Captain w/ Terminator Retinue (285)
 >Brother Captain w/ holocaust
 >Terminator Retinue w/ 4x marines and holocaust

Elites (482)
-Assault Squad w/ furious assault (241)
 > Vet sgt w/ powerfist
 > Squad w/ 7x marines and 2x plasma pistols
-Same as above (241)

Fast Attack  (453)
-Bike squadron (173)
 > Vet sgt w/ teleport homer and meltabombs
 > Squadron w/ 3x marines and 2x meltaguns
-Landspeeder Squadron (160)
 > Squadron w/ 2x tornadoes with assault cannons and h. bolters
-same as above (160)

Troops (266)
-Marine Squad w/ tankhunters (133)
 > Squad w/ 6x marines and 1x plasmagun and 1x lascannon
-same as above (133)

-The troops will target heavily armored threats.
-The bikers primary role is to safely deliver the terminators and to grab objectives. When opportunities present themselves the bikers will close to engage available armor targets.
-The landspeeders will rake large enemy formations and engage the rear of armored targets.
-The assault squads will act in concert with each other to decimate enemy troop formations.
-The terminator squads will break up large troop formations with the Grey Knights leading the assaults and the librarian command squad supporting their attacks.

Abael, thanks for responding. BTW its an 1850 list.

The perils of the warp risk to the squad for the second holocaust power is pretty high. I had to recheck just how bad. I'll think about dropping that one. If I do I may realign ten of those twenty points to buying teleport homers for the assault squad sergeants.

The getting shot to pieces is something most armies worry about. I realize keeping such a large reserve could hamper me in the first couple turns. But then those forces that I do have, with the exception of the las-plas squads, are all fairly mobile forces.  I hope to be able to use this manuverabilty to provide some degree of tactical protection. The first turns will be the hardest against a distinctly shooty force like iron warriors or IG. My forces should do fairly well against moderate amounts of ranged firepower.

As to attacking an assault oriented force like the 'Nids, Orks, and Chaos my assault forces are fairly well armed for the task. The GK termies can hold their own against virtually all comers w/ str 6 power weapons and at least one str 5 ap - template to boot. The Librarian's squad would normally teleport into a support position for the GK termies to add firepower and powerfists to the attack. These two squads main weakness is their lack of bodies. The two assault squads have the benefits of furious assault, one power fist each, and some bodies to lose. I'm mostly worried about being heavily outnumbered, thus most of my force is fast or is teleported into a key area.

What do you think a wily assault oriented opponent would bring to the table that would be so effective against this force? demons? nobz? hordes of gaunts?

In other words I hope to use my fast forces (including my deployment order) to outmanuver my opponent and engage them on my terms.

The worst case is good to think about, thanks

Derek the savings you speak of for a GK terminator squad when compared to a standard terminator squad doesn't really exist consider a standard terminator squad with 5x marines at 40  pts/each and two are equipped with assault cannons at 20 pts/each. That runs 240 for the squad. A similar GK terminator squad includes a brother-captain at 61pts and 4x marines at 46pts each. That runs 245 for the squad.

The main difference is in their strengths. In close combat, a standard terminator squad (now called 'A sqd') reliably brings 8 powerfist attacks and 2 power weapons attacks. These are better thought of as 8 attacks: str 8, int 1; and 2 attacks: str 4, int 1 all with no armor saves. The upside is the majority of attacks will instant-kill characters and wound on a 2+ as well as make effective anti-armor weapons, the downside is that every thing else hits them first. A GK terminator squad (now called 'GK sqd') brings 11 attacks: str 6, int 4 all with no armor saves. For no extra cost any GK sqd member may exchange his weapon for a thunder hammer converting 2 attacks from str 6, int 4 to str 8, int 1. The upside is that the majority of attacks will hit in inititive order and will wound T4 models on a 2+, the downside is that they are less effective anti-armor weapons. Now to sum this up, A sqd is better in close combat against very high toughness models and heavier armor, but because they attack last in most cases they could lose models quickly when they are out numbered. GK sqd would likely defeat A sqd in close combat since they would attack first and still wound on a 2+. This makes GK terminators very effective Terminator and marine killers in close combat.

GK sqd has some options that make them even more effective at close combat. The holocaust option (20pts) gives a str5 ap- pie plate at int1, thus allowing them to reduce forces that may significantly outnumber them. The sacred incense option  (10pts) reduces the int of all chaos models in an assault by -1 thus allowing them to strike first against chaos models that would normally attack simultaneously. Now they are exceptionally good at killing Chaos terminators and marines.

A sqd's assault cannons provide them some effective short to mid-range firepower that is definitely lacking in the current GK sqd's configuration. The GK sqd may buy upto two psycannons at 25pts/each which provide a similar level of fire support, but I choose to focus my GK sqd on their real strengths, killing heavily armored T4 models in close combat.

So in my list the Grey Knights fill a close combat niche. Only Assault terminators equipped with pairs of lightning claws come close and even then they only wound T4 models on a 4+ (rerollable),  granted they have 15 attacks vs the GK sqd's 11. But they don't have the special rules (Aegis, Shrouding, and Fearless) or the options available to Grey Knights.

syr8766 thanks for responding,

I originally had power swords on my assault sgts. for the Int bump. I considered lightning claws but they cost too much and having one reduces the number of attacks. So I considered power fists when I thought about fighting big nasties with the squad. This went well with the plasma pistols. Together they make the squad adept at fighting well armored infantry. Flamers would work well with the lightning claws or power weapon route but they cost more than the pistols do. I'm not too concerned about the 'gets hot' checks with a 3+ save and the fact that the pistols will maybe get fired twice each.

The last rewrite I posted is pretty much what I'm planning on fielding at this point unless somebody comes up with another really wicked addition or a neato item/power swap thats adds omph! (Especially since I've begun modelling the units).

Even though I've got duplicate units I've been working develop and flesh out unit themes within the force. This is resulting in some pretty extensive conversion work, which I'll post pics of into the modeling forum after adepticon. To give y'all an idea. I'm putting together the second assault squad now. They all wear horsehair brushes on their helms, carry medival weapons and pistols, wear shredded aprons, and are heavily remodeled to look like they are running and attacking in full stride. The grey knights are based off plastic terminator models with swapped out chaos warrior helms and have been layered in green stuff latin etchings, tabards, and inquistorial insignia.