I think it would be helpful if this thread sticks to things the rulebooks and FAQs actually say, rather than what we think would be realistic or reasonable, because 40K.
1. I told at least one person that vehicles can get cover as long as they're 50% obscured. As per the FAQ, though, like Infantry, vehicles too have to be within the terrain element that's obscuring them. To be clear, for Infantry to get Cover they have to be entirely within the terrain element (and don't explicitly need to be obscured per a model's-eye-view), anything else needs to be both "on or within" the terrain element and at least 50% obscured from the point of view of the shooting model. (Personally I'd read that as saying things that aren't infantry don't have to be entirely within a terrain element to get cover, though.)
2. Although I said you get to fire Overwatch on consolidating units, the rules don't support that ruling - it says clearly that you fire Overwatch against units that declared charges against you in the Charge Phase, and a consolidation move is not a declared charge, and takes place in the Fight Phase. Basically, Overwatch is a thing that happens in the Charge Phase, and consolidation is a thing that happens in the Fight Phase.
