My Ambull pack arrived today - looks like a nice model, and the borewyrms are nice too. Could use a few more of those as counts-as Millisaurs for Necromunda
(eyes up bluestuff). Rules for this separate quest seem to be almost as water-tight as the core game, but there are a couple of things that aren't quite clear:
• Ambulls & Borewyrms treat other hostiles as if they were explorers (i.e. they'll attack them given the opportunity). Hostiles in turn treat Ambulls as explorers. There's a hole in that neat little exchange though - RAW other hostiles will not treat Borewyrms as explorers. I'm not sure if this is an oversight, or if it's intentional that even if they're in the process of being nommed on by a big maggot critter, other hostiles won't fight back. The two rules are stated
immediately after one another, so it seems like an unlikely oversight, yet if it's true it's very strange. It's easy enough to just go through your order of operations to determine what they will do if they genuinely disregard the creature that is trying to chew their leg off, but logically I feel they should just fight the flippin' wyrm
• The Sett VII Precipice add-on space station thing has two sides - under construction and completed. I assume this is for a specific reason, and completion is triggered somehow, but it doesn't appear to be mentioned anywhere. It tells you to place it incomplete side up, then it's never mentioned again.
Oh, and I guess there will be at least four expansions, purely based on how the Sett VII integrates with the Precipice board.