Transport question

I'm probably missing a rule or something here, but could you theoretically have a <coven> raider that had <kabal> warriors riding inside?

Just thinking along the lines of having a haemonculus buff the vehicle to T6 but still have the kaballites shooting from inside.

Yeah that's perfectly legal, the common strategy is to take your transports in a Black Heart Spearhead so that they get the 6+++ since the spearhead having 4 units (Archon 3× Ravager) unlocks 4 dedicated transport slots.
It's worth noting it does lock you out of a few things like stratagems (Red Grief one only works on Red Grief Transports) and I think they FAQ'd it so that Flayed Skull only get their reroll 1s if they're embarked on a Flayed Skull transport. If they didn't and I made that up, flayed skull kabalites in black heart venoms is probably the best combo since a 6+++ and reroll 1s to wound and hit with writ of the muse on your vehicles is better than anything else on offer, t5 is a great toughness to be at as most small arms are wounding on 5s but you're not quite tough enough to be a valid target for the Heavy guns like lascannons, autocannon have a field day though and wouldn't really be affected by the +1T a haemonculus provides.

Yeah, they did FAQ it, cheers though, might pull some of those tactics one day.

Yes you can.
However:
1. You can only take <COVEN> Transports if you take <COVEN> units. You can however put <KABAL> units in them once you've taken them though.
2. You of course would need those <COVEN> units to be in a different Detachment to the <KABAL>, because if they're in the same, you don't get an Obsession.

Can I put my Archon with my Succubus and a 5-man Wych unit in the same raider?

Yep

@Sacron thank you! And here I thought it was too good to be true!

Tounguekutter wrote:

@Sacron thank you!  And here I thought it was too good to be true!

While good, there are a few restrictions in the faqs. Like that you need to be from flayed skull if you want to benefit from the flayed skull shooting bonus the transport gives.