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Just make a quick search in the forum first but found nothing.

In the core rulebook it is said that Tyranids are "battle brothers" with Tyranids but in the allied detachment, among restrictions, they say that allies must have a different faction!

Now i'm confused, can my have (or not) a primary detachment of Tyranids let say 2 Flyrants and 2 squads of hormagaunts allied with another Tyranid detachement composed of a Tervigon and 1 squad of Termagants?

Nothing prevents that that I can see in 7th ed.
You could also have an additionnal "main" detachment, allowing you to have 2 more HQs, but needing 2 troops minimum

no, you cannot have an Allied Detachment" as define in the BRB have the same Faction as your Primary detachment.

You can have any other detachment though, such as 2 CAD's or a CAD and a Formation detachment or all formation detachments but just not the "Allied Detachment" from the BRB.

If your Warlord is a Tyranid, you can't take an Allied Detachment of Tyranids. The Allied Detachment has this restriction.

You CAN have 2 Combined Arms Detachments, with one having your Warlord though.

You CANNOT have a Combined Arms Detachment of Tyranids with an Allied Detachment of Tyranids in the same army if your Warlord is a Tyranid.

You CAN have a Combined Arms Detachment of Tyranids with an Allied Detachment of Tyranids in the same army if your Warlord is NOT a Tyranid.

Legal
Tyranid CAD - Warlord
Tyranid CAD

Illegal
Tyranid CAD - Warlord
Tyranid AD

Legal
Tyranid CAD
Tyranid AD
Space Marines CAD - Warlord

 Kriswall wrote:
If your Warlord is a Tyranid, you can't take an Allied Detachment of Tyranids. The Allied Detachment has this restriction.

You CAN have 2 Combined Arms Detachments, with one having your Warlord though.

You CANNOT have a Combined Arms Detachment of Tyranids with an Allied Detachment of Tyranids in the same army if your Warlord is a Tyranid.

You CAN have a Combined Arms Detachment of Tyranids with an Allied Detachment of Tyranids in the same army if your Warlord is NOT a Tyranid.

Legal
Tyranid CAD - Warlord
Tyranid CAD

Illegal
Tyranid CAD - Warlord
Tyranid AD

Legal
Tyranid CAD
Tyranid AD
Space Marines CAD - Warlord

Ok got it!
In other words i can have 2 Tyranid detachments side by side BUT any rules that refer to friendly units of the same faction are not "given" from one detachment to another?

For exemple in CAD A my warlord is a Tervigon so any Termagants from CAD B do not get Brood progenitore benefit if within 12".

Am i correct?

no. any benefit, that is for a friendly unit, or specific to a certain faction like faction:tyranids or just any model within xx inches still applies regardless of detachment. In your example Brood Pro says "all Termagants...." so it would apply to both friendly and enemy termagants, regardless of detachments.

Detachment specific rules like "command benefits" or "restrictions" would only apply to models in that specific detachment.

40k-noob wrote:
no. any benefit, that is for a friendly unit, or specific to a certain faction like faction:tyranids or just any model within xx inches still applies regardless of detachment. In your example Brood Pro says "all Termagants...." so it would apply to both friendly and enemy termagants, regardless of detachments.

Detachment specific rules like "command benefits" or "restrictions" would only apply to models in that specific detachment.

Got it, thanks

40k-noob wrote:
no. any benefit, that is for a friendly unit, or specific to a certain faction like faction:tyranids or just any model within xx inches still applies regardless of detachment. In your example Brood Pro says "all Termagants...." so it would apply to both friendly and enemy termagants, regardless of detachments.

Detachment specific rules like "command benefits" or "restrictions" would only apply to models in that specific detachment.

I was under the impression that your enemy doesn't benefit from your perks. Am I wrong?

Whats the perk? I can't think of any that the wording itself does not exclude enemy models in some way.

 DJGietzen wrote:
Whats the perk? I can't think of any that the wording itself does not exclude enemy models in some way.

old KFF rules made it cover all models (so friend or foe) but only ork vehicles.

basically if the rule states "All models within 12 inches" then it's friend or foe.

if the rule states "All friendly models within 12 inches" then it only cover models that are treated as friendly, which is covered in the allies section.

"all tyranid models in 12 inches" would only apply to tyranids.


rules which instead say things like "All models in this detachment have preferred enemy" would only apply to models taken in a specific detachment.

 DJGietzen wrote:
Whats the perk? I can't think of any that the wording itself does not exclude enemy models in some way.

The rule says:
"Brood Progenitor: All Termagants in units within 12" of the Tervigon have the Counter-attack special rule."

Edit: Checked the FAQs and there is no change on this rule.