Some thing I want to point out are:
-1:02 unique Bowie knife type weapons for each character?
-2:27, there is a new perk (headshot symbol) and a new sniper of some kind.
-2:30 You can shoot while Zip line-ing
-2:35 and 3:03 Zombies can follow you on the Zip line
-2:42 Flinger, easy way to get from one side to the other (Light house to ship I'm assuming)
-3:09 hint at new easter egg?
-3:19 John Romero "boss" zombie with a wunderwaffle hammer?
-3:40 Frosty screen ?
-3:41 Headshot perk again and Pack a Punch
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