Hit the link to watch in HD.
New class system “Pick 10” is mentioned but not explained much. Some previous perks such as slight of hand have now been replaced by weapon attachments.
Xbox version is shown so it still looks like garbage. PC will ship with DX11 support. Black Ops (1) ran great so it will be interesting to see how Treyarch brings in the new tech while keeping the game open to the most players.