I bought DT not just for the exellent models and game play but to create winter terrain, something I have never attempted before. So after locating a forest of Fir trees and a tub of Army Painter snow, I set to doing away with the random blocks of concrete littering the battlefield. I may house-rule that spotter and sniper teams can occupy these tiles which count as hard cover, for everything else it counts as normal blocking, impassible terrain.
Here's the results: