What about this list (Cally 2016)?

[jaqenhgar]

Ok in the above list the brazen claws are now ravenguard as double checked the etc FAQ and if I join the space marine IC to the Ravenwing he loses chapter tactics. Ravenguard means the scouts are shrouded turn 1, and get +1 to night fight.

Or I could take a dark Angels cad instead of the ravenguard allies:

TERTIARY DETACHMENT: Combined Arms Detachment: Codex Dark Angels
HQ2: Techmarine (65), bike (20), conversion field (20) [105]
Troop1: Scout Squad [55]
Troop2: Scout Squad [55]
FA8: Drop Pod [35]
Total [250pts]

Extra 10pts on a combi-grav in the second bike squad.

Can't decide!

[Embolden]

What does the allied detachment give you?

Is it worth dropping it entirely and putting more points into your main force?

[jaqenhgar]

It's there for the drop pod for the culexus and so that I can reserve the strike force if I want to and not get tabled turn 1. Against a shooty army with a lot of ignores cover I would really want to reserve I think.