Here’s what I see so far:
– Killstreak loadout
– Create your killstreak
– New Buzzkill
– New Payback (for camping in the same place/teamkilling?)
More Explosive weapons
– New perk loadout
– New ways to kill bystanders.
If you notice that everytime you blast out a powerful weapon, your surroundings also explodes.
Better graphics, lightning, and details
– More objects onscreen
– New locations to walk on, and kill.
Now, you need to watch out for people on horizontal view.