I am stuck in citizen one. I have moved a piece of white tin and dropped through a hole and went to the red shed. I met a girl and medic and went through to the street where the flying things are dropping the mines. I went towards the shielded wall and turned right and went through a short corridor. There is a red shed on the right and one on the left. The one on the left has a broken panel that I have to duck to get into and there are grenades there. I went down the stairs and I am here:
http://www.tommcdonald.net/d3_c17_040000.jpg
http://www.tommcdonald.net/d3_c17_040000.jpg