Umm well you def said YOU havnt found many uses for the slide mechanic yet many others have and use it a Lot.
Dont see why you ever at anypoint thought you could go through any of the windows, never knew anyone else having that problem or thinking the windows were framed with openings. Also the ONE window from the hack room in terminal, its clearly obvious its there to shoot or throw things through. Derp!
Again really dude, you were expecting to go on top of the roofs and in and out of any window you see?!?! Its pretty clear many windows are too small to climb through especially with the size and animation of characters, and to think you should be able to reach any rooftops you want is just moronic. I guess you think its fair for lights to be able to get on roof tops and go anywhere they want in the level with almost no opposition and rain down damage from above. Kinda ruins the whole point of having a level layout and not an open world map.
And if you are pissed because YOU get distracted and die looking at roofs and windows trying to jump into/onto them well then Sir, I ask you to seriously reconsider who is the Retard is this thread because its obvious its not everyone else.