Finally came up with a name for the map. It's loosely based on the Soviet offensive in Jan 1945 in the Tuchola Forest area in Poland.

Here's what happens when you have a bad piece of patch mesh. The mesh acts partially transparent and you can fall through it if you walk or drive on the wrong spots.
Call of Duty: United Offensive - Tuchola Forest 1945 - Example of a bad patch mesh causing issues.

Two shots showing snow decals applied to the base of the retaining wall.
Call of Duty: United Offensive - Tuchola Forest 1945 - Snow decals applied to base of a wall.

Call of Duty: United Offensive - Tuchola Forest 1945 - Snow decals applied to base of a wall.