Those 2 FAQ questions are contradictory when it comes to drop pods cause its saying I choose to deploy this half walks on the table this half drop pods in. Can't do that but it seems like you take a 10 man assault squad you combat squad which you cant do in reserves can somehow deep strike 2 different locations as Combat squads.
All it really means is that the entire unit must use the same method of entering the table, and are rolled for as a single unit in reserves. You can't split a unit and have one squad Outflank and the other Infiltrate. You could, however, have both squads Outflank and arrive on different sides of the table.
Benshin, the rules for Combat Squads explicitly allow you to split into Combat Squads when you disembark from a Drop Pod, so no harm was done there. The FAQ is just explicitly preventing you from having two combat squads deploy via different methods, as outlined above.
JWebs, Sanctuary explicitly mentions that enemy units treat
all terrain, even open terrain, as both difficult and dangerous, so the assaulting units would still go to initiative 1 because they count as moving through difficult terrain. Similarly, Slow and Purposeful specifically states that the unit counts as moving through difficult terrain. The Venomthrope, on the other hand, simply says that assaulting units must take a dangerous terrain test. It makes no mention that they count as moving through terrain of any kind, and thus their initiative is not reduced.
Thefallen, come now, you couldn't have expected that to last all that long
Also, I'm fairly certain vehicles are prohibited from being scoring units (unless you're extra-speshul like Grey Knights).