played it today in a 5v5 and there are quiet a few issues imo:

Screenshots with possible problems - there is additional stuff in the text below:
http://imgur.com/a/fcLx9

the "dozer" one on the B site needs to go - before i played it today i ran around on the map and noticed that standing on top of it could be OP. After playing it i can confirm that - its impossible to kill somone standing on that thing since you simply dont see him. Besides that jumping on that thing is completly buggy (you randomly get stuck).
Other than that there are not really many good spots you can hold b from except right at the wall infront of the site or behind the box on site (esp. when planting the bomb).
So going B is basically a no go unless one can wrap all the way around it.

while we are at it the dozer in the "mid to A route" or 2nd mid or whatever needs to go aswell for the same reasons.

rotating is insanely hard since the mid and 2nd mid area area are really open leaving huge amounts of spots where you can get shot from.

the logs are all extremly bad clipped or whatever it is but running alongside them gets you stuck all the time.
running up them shouldnt require jumping imo.

On A site checking for players on the dozer is impossible without being exposed to every angle there is.

there are literally a hundred (ok maybe not a hundred but still) spots that look like you can jump there but then you realize that there is an invisible wall (back platfrom on A site e.g. the sandbags - you can get on the whole dozer on A while on B you cant)

challenging mid is a bit T sided but i guess thats fine ^^