This is a real toughie as there are missions in each of them that I found quite difficult.
Went with Several Bridges Too Far in the end. I had a rough time with all of these missions at some point and it took me a fair while to finish them. Nijmegen Bridge was bad enough, then I was greeted with the close combat fighting in Yard by Yard (which is very difficult on Hard) and then to top it all off one of the hardest levels in the game, Arnhem Knights.
