When they had stopped laughing, my gameplaying friends told me that I had to find the ally, climb the ladder, jump off the fire escape and then make my way to another meeting point. Where I would be set upon and shot at by more secret police. Simple. Having got over this minor hiccup I am now going great guns. Quite literally. The air of realism is very impressive, the only problem being the loading screens.
Imagine that you are being chased down a corridor, bullets thudding into the woodwork around you as you sprint towards the only route out. Then your world freezes for three minutes whilst the environment outside the door is loaded in and made pretty. No fun. And then it starts working when you've nipped to the toilet during the loading and you get shot in the back and have to start again. Even less fun.