That was a pretty poor trailer. Kept a constant pace and didn't do a good balance between showing story and gameplay imo. Plus it recycled a bunch of old clips. I liked the E3 trailer a lot better.
Splitscreen isn't dead!
Splitscreen isn't dead!
#BlackOps3 PC 2-Player Splitscreen: split up/down, left/right, or across two monitors!
— pcdev (@pcdev) August 6, 2015