White scars got even better due to a campaign book, Battle Company is now a thing for marines (2200+ pt army for 1850 due to free vehicles), War Convocation is a mix of Skitarii and AdMech again with a bunch of free upgrades to allow you play several hundred pts up on you opponent. Tau continue to be shooty and now have their own Gargantuan Creature who shoots even more. Eldar are still gross, just now its scat bikes, warp spiders and a wraithknight. Necrons are still around but have not really changed.