We all know how grim Pashendale was during WW1, mud, total destruction and a cruel life for the soldiers in the trenches. Perish the thought you actually got injured there, because this would be a typical example of the treatment you got!
Find a small bit of flat terrain to place a solider on. Get various bits of bandages you can find and place on given solider whilst smoking a well earned fag. Gather a stick and wrap around soldier's broken or damaged leg so it don't move. Dodge incoming fire until you are stretchered off home.