Completed the DLC last night. Extremely short and a good time killer. I liked the concept, but sadly the missions weren't varied enough. Cole's new abilities as a Vampire were pretty cool. Wish it were a lengthy DLC, like Undead Nightmare.
I think there is an ice burst upgrade which is pretty much all you need for traversing. Use that plus gliding and you'll get through most areas with ease. But that comes a bit later in the game, if I remember correctly.