Let's start with the graphics. It looks pretty dull. The same textures over and over again. The only cover that exists are the walls of the house and all those wooden crates. The floor of the outside areas is basically just two textures: snow and stone. The house is also not very appealing visually. I mean what purpose does it serve anyway? It looks like it was designed so people can just put crates in there, but it doesn't really look like a warehouse either. It's just odd. Basically, the map is just very boring to look at.
You attempted to decorate a bit with the trees. I suggest you give all the them a random rotation, otherwise it looks weird.
Gameplay-wise it's kinda Dust 2-ish. Not a bad thing necessarily. However the paths, the cover, and pretty much everything wasn't well thought out. Wouldn't be a great competitive map, in my opinion.
Overall it could be improved a lot. Gameplay-wise and visually. Make use of sprites and more varied tiles and effects to make the map look more interesting, so that the different parts of the map look more unique and easily recognizable. Gameplay I guess would be best improved with direct feedback from people who play this map a lot, but I doubt that there is anyone who would do that, unfortunately.
I'll give it a final rating of a big white corridor with some crates in them out of ten.