To answer a few outstanding questions:
Things like the Etherals Victory Point he conceeds, champion of humanity, the dark angels warlord trait for an extra VP, the personal trait, etc etc. Do these count towards primary VP, or just as tie breakers?
On blackout, I assume we roll for first turn before we infiltrate/scout?
Yes - the player who wins the roll for first turn should be the one deploying any infiltrators first or scouts first. The mission text does not indicate this clearly at the moment, so I'll be amending this in time for when we hand out the mission sheets on the day.
Do you only claim in the movement phase or could an eldar jetbike claim once in the movement phase than turbo boost 36 inches to another objective and claim that one as it just says 'ends its move' never says the movement phase, and models can move in all 3 phases of the game
In Firesweep, an objective may be claimed in any phase by a unit ending its move with at least one model in contact with it and no enemy denial units within 3" of the objective. A single unit may only claim ONE objective per turn. Again, I'll be amending the mission sheet to reflect this and remove confusion.
As a final note - please be advised that there will be one small alteration made to the "Assassins" mission before the event. As about half of you have already submitted your lists and half of you haven't - I won't be clarifying what exactly that change is yet (otherwise it may give some people an unfair advantage in terms of list construction), but I'll clarify it in due course over the coming week.
In any case, we'll be supplying the mission sheets to all players on the day with the most correct and up to date info, so you should refer to those in all instances.