Huzzah for combined squads! Although they mention conscripts are now only 20-30 per unit. So alas, no more mass hordes that easily.
Oh man, the Mordian special order lets you use Rapid Fire weapons to aim at characters regardless of how close they are to a unit. They even say how well it would work on veterans with plasma. That's going to be pretty brutal.
Needless to say, I'm pretty hyped for the codex.