problems in the passage (Homefront: The Revolution)

Good day friends, everyone! To my surprise, I ran into some problems in the passage of the game, or rather how to go there or here, how to get to this or that point, floor, and so on .. for example, at the moment I can not understand how to get through the moment where the elevator is at the top and it is necessary his crack ...
screen


other place in the three-storey building where the parking of cars, and on the third floor but there is no need to travel to get there, do not enclose screen because all the houses are almost the same, but I think somebody will guess what I mean ...
in general, need your help. Thank you!