Looks good. i attached a few pictures with Feedback. Hope this helps. :-)
![](http://s18.postimg.org/mc0qzwd0p/tactical_fb_harm_001.jpg)
You should extend the mid area.
![](http://s23.postimg.org/5honfy3ln/tactical_fb_harm_002.jpg)
Red: Change the texture to the ground/dirt texture.
And you should use the ice texture, instead of the glas texture.
![](http://s18.postimg.org/che77eyg9/tactical_fb_harm_003.jpg)
Green: Change the texture to gras.
Red: Extend the brush.
![](http://s15.postimg.org/4lxjuaqvv/tactical_fb_harm_004.jpg)
![](http://s24.postimg.org/zdcs3529x/tactical_fb_harm_005.jpg)
Green: Change the texture to gras, again.
Red: Extend the brush, again.
![](http://s16.postimg.org/pvthh7asl/tactical_fb_harm_006.jpg)
Delete this. This is needless
![Smiley :)](Smileys/dp2/smiley.gif)
![](http://s24.postimg.org/55r4936bp/tactical_fb_harm_007.jpg)
This area looks really empty, add a barrel or something.
![](http://s16.postimg.org/jomous4f9/tactical_fb_harm_008.jpg)
Add sth like a ramp here.
![](http://s2.postimg.org/lpoo2so1l/tactical_fb_harm_009.jpg)
Green: Change the textures to gras.
Red: Extend the brush.
![](http://s10.postimg.org/eb0wiesd5/tactical_fb_harm_010.jpg)
Add a wall-brush here.
![](http://s23.postimg.org/6fwqti01n/tactical_fb_harm_011.jpg)
The windows should be deeper.