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This C'tan again. Wants to move with its squad, the rest of the unit want to stay outside of cover and move, 6, he wants to get into cover and move through it (but he ignores natural laws so is unaffected by all terrain).

How far does this squad move?

Unless I'm mistaken, C'tan shards are Characters, not Independent Characters, and cannot join units or be joined by Independent Characters. So this situation would never arise.

EDIT:

Ah I see, you must be using the Conclave of the Burning One. That has its own problems (given there is no C'tan Shard unit in the codex), but I'm assuming you're houseruling it somehow to make it work.

The problem you have is that 'Immune to Natural Law' is a model-level special rule and affects only the C'tan Shard, whereas per 'Moving Into Difficult Terrain' in the Battlefield Terrain section of the rulebook, you must declare at the unit level if you wish the unit to enter difficult terrain as part of their move, and therefore must make a difficult terrain test and that is the maximum distance that any of the models in the unit may move, even if they don't actually move into the difficult terrain.

How I would play it is that the difficult terrain test distance applies to the Cryptek models, but not to the C'tan Shard, although the C'tan Shard of course must maintain unit coherency.

This is covered, and bolded, under the 'Difficult Terrain' section of the BRB.

 Mr. Shine wrote:
Unless I'm mistaken, C'tan shards are Characters, not Independent Characters, and cannot join units or be joined by Independent Characters. So this situation would never arise.

There's the Conclave of the Burning one formation consisting of a C'Tan and Crypteks in a single unit.

ryuken87 wrote:
There's the Conclave of the Burning one formation consisting of a C'Tan and Crypteks in a single unit.

Yeah, you'll probably see I edited my post just before you posted - forgot about that one!

This is covered, and bolded, under the 'Difficult Terrain' section of the BRB.

I'm not sure it's quite so simple as that. Certainly moving into difficult terrain is a unit-level action and requires a unit-level difficult terrain test, but you've got a single model in that unit with a codex-level special rule which I believe needs to be taken into consideration versus the rulebook level rule of moving into difficult terrain.

Yeah I'd forgotten about that rule. I think your above interpretation is the correct one.

 Mr. Shine wrote:

This is covered, and bolded, under the 'Difficult Terrain' section of the BRB.

I'm not sure it's quite so simple as that. Certainly moving into difficult terrain is a unit-level action and requires a unit-level difficult terrain test, but you've got a single model in that unit with a codex-level special rule which I believe needs to be taken into consideration versus the rulebook level rule of moving into difficult terrain.

Do not forget that the C'tan also comes with Move Through Cover being a Monstrous Creature, so movement through DT could be adjusted for the Crypteks if they went through.

Isn't the DT roll only applicable to models that actually enter the terrain? You make the roll and apply the Restriction to models that enter difficult Terrain. Any models that stay entirely out of the terrain get their full movement. The C'tan enters difficult terrain but is not affected by the restriction because of its special rules.

 Charistoph wrote:
Do not forget that the C'tan also comes with Move Through Cover being a Monstrous Creature, so movement through DT could be adjusted for the Crypteks if they went through.

Oh yeah, the Crypteks would indeed benefit from there additional D6 roll.

WaughGoff wrote:
Isn't the DT roll only applicable to models that actually enter the terrain? You make the roll and apply the Restriction to models that enter difficult Terrain. Any models that stay entirely out of the terrain get their full movement. The C'tan enters difficult terrain but is not affected by the restriction because of its special rules.

Unfortunately difficult terrain test results apply to the unit:

"To take a Difficult Terrain test, roll 2D6 and select the highest result – this is the maximum distance, in inches, that any of the models in the unit may move."

But you are not obligated to enter DT just because you made the roll. You may roll then decide which, if any, models enter terrain. Any models that do not enter terrain are not slowed. The C'tan would be slowed if it entered terrain, except that it isn't.

WaughGoff wrote:
Isn't the DT roll only applicable to models that actually enter the terrain? You make the roll and apply the Restriction to models that enter difficult Terrain. Any models that stay entirely out of the terrain get their full movement. The C'tan enters difficult terrain but is not affected by the restriction because of its special rules.

Unfortunately, no. Quote: "To take a Difficult Terrain test, roll 2D6 and select the highest result – this is the maximum distance, in inches, that any of the models in the unit may move."

It would make more sense for DT (difficult terrain) movement to affect only those moving into DT, but eh. That's the way the game goes sometimes. Same thing for charging thru DT - if just one genestealer out of a group of 15 charges through DT, they all swing at I1.

But to the original question, if you have a group of boyz, and want to move into terrain that is 4" away, and declare you are making a DT roll and roll snake eyes, the entire group can only move 1".




Automatically Appended Next Post:

WaughGoff wrote:
But you are not obligated to enter DT just because you made the roll. You may roll then decide which, if any, models enter terrain. Any models that do not enter terrain are not slowed. The C'tan would be slowed if it entered terrain, except that it isn't.

You are not obligated to enter terrain if you make a DT roll, this is true. But once you declare you're making a DT roll, and make one, there's no backsies. The entire unit can move the highest amount of the 2D6. You cannot, say, declare you're moving into DT, declare a DT roll, roll snake eyes, and then move 6" around the terrain. That is cheating. In the unique case of the conclave, I'd allow another D6 that allows to the c'tan only.

 Kap'n Krump wrote:
In the unique case of the conclave, I'd allow another D6 that allows to the c'tan only.

As Charistoph pointed out, the C'tan as a Monstrous Creature has Move Through Cover, which applies to a unit with at least one model with the rule so it would be a unit-wide additional D6 roll. Although yeah, as I said also, the C'tan's Immune to Natural Law rule I think would allow it to ignore being slowed by the difficult terrain test result.

WaughGoff wrote:
But you are not obligated to enter DT just because you made the roll. You may roll then decide which, if any, models enter terrain. Any models that do not enter terrain are not slowed. The C'tan would be slowed if it entered terrain, except that it isn't.

While this is true, 'Moving Into Difficult Terrain' makes it clear that you are still slowed:

"Even if the distance rolled is too short for any of the models to reach the difficult terrain, the unit is still slowed down as described above."

And also:

"You should also note that, if you take the Difficult Terrain test, you are not compelled to move the models, as you might not have rolled high enough to make it worth moving at all."

Fun fact: "obligated" is a back-formation from the noun "obligation" which of course is a noun. The original verb is "obliged"

Sure you can. Happens all the time.

WaughGoff wrote:
Sure you can. Happens all the time.

See my edited post above - if you declare you are moving into difficult terrain you must test, and the unit is slowed, even if they cannot or do not move into the difficult terrain.

If the C'tan is the only one that would be passing over/through the Difficult Terrain, he is not treating it as Difficult Terrain, just Open Terrain, so by himself, would not trigger it. If one Cryptek does, though, roll Difficult Terrain by Move Through Cover.

RTFM:

If a unit starts its move outside difficult terrain, the player must declare if he wants his unit to try to enter difficult terrain as part of their move. If he chooses not to, the unit moves as normal but may not enter difficult terrain. If he chooses for a unit to do so, the unit must take a Difficult Terrain test.

That's it. If you want to get into terrain, you take a test, even if your dog tag says "Mr. Ctan", unless of course you're a unit that ignores difficult terrain altogether.
Does the Conclave of the Burning One have such a rule ?