Easy solution: turn the hospital into an instant morgue.
You and Jack (see post # 2) ought to decide what you want to do. He wants to raze it, you want a morgue. Decisions, decisions....
Another easy solution: cut off all power and water to the hospital, if necessary by cutting the lines. When the hospital complains, tell them it will be turned on only after surrender of occupants coming out unarmed, for an inspection. After inspection the hospital mysteriously blows up, blame it on Hamas holdouts.