New unit build or did I miss lots of rules?

I'm ill, so feel like I've missed lots here, but I'd like to know what please

Archon with Blaster, riding a Venom (dual SC ofc).

4 Mandrakes joining the unit for deployment.

This makes the entire unit Infiltrate

All have 18" weapons (excluding the Venom).

Entire unit has Stealth and Shrouded?  2+ Jink on the Venom ??

Please tell me what I've done wrong

Hellstrom wrote:

This makes the entire unit Infiltrate

Nope, the Archon doesn't have the rule so can't infiltrate (I'm 95% convinced by this, but don't have rulebook with me), neither does the venom

Hellstrom wrote:

Entire unit has Stealth and Shrouded?  2+ Jink on the Venom ??

Nope, only the mandrake models have the stealth and shrouded rules - they don't confer to any transport they happen to be embarked on at the time.

Independent Chars without Infiltrate can't join Infiltrators (Independent Chars Special Rule, pg 166 BRB).

Why doesn't Stealth confer to a transport?  It says any unit it joins?

"A unit that contains at least one model with this special rule counts its cover saves as being 1 point better than normal."

Hellstrom wrote:

Independent Chars without Infiltrate can't join Infiltrators (Independent Chars Special Rule, pg 166 BRB).

Why doesn't Stealth confer to a transport?  It says any unit it joins?

"A unit that contains at least one model with this special rule counts its cover saves as being 1 point better than normal."

They don't join a transport. They embark on it.

Ahhhhh. Balls

Thanks both of you x

There's a Tactical Warlord Trait that gives Infiltrate to Warlord and three other units; not something to pin a whole plan on, but will come up if you roll on that table (as I do).

I suppose you could argue that a transport 'contains' the model with stealth, but since that would lead to Wave Serpents embarking Rangers for 2+ Jink and Land Raiders embarking the SM equivalent for 4+ cover in the open, let's not.

Creeping Darkness wrote:

I suppose you could argue that a transport 'contains' the model with stealth, but since that would lead to Wave Serpents embarking Rangers for 2+ Jink and Land Raiders embarking the SM equivalent for 4+ cover in the open, let's not.

They're still two separate units anyway, and the rule is worded such that an argument on that basis is easily refutable.