Roofs of Iberian Offensive

Hi i ran into a problem with this map mainly a group of players was able to get on a roof right side of point b the one split in half with the mg at the bottom  and because of that was able to snipe nearly half of the map staying mostly outside of reach. Proceeded to do this for half a game getting easy frags until my team decided to counter snipe. As a fix i would propose a option to add a out of bound to roofs on this map as clearly there should be no access because of the closed doors . 

evidence of the encounter in uploaded screens 

-ps sorry for the quality of 2 pictures i took them with my phone i had a problem with prnt screen and dont have any vid capture set up at that moment .