a couple skill demos can take out any medic/soldier combo before they get close to the middle of the base ^^. If im on defense I prefer to have 2 demos forcing medics to use their uber early, thus protected the sentries within. There are many good ways to do this 
. (This is only for CTF maps – for the most part). Although demos are still pretty good at taking down a medic, even if it costs the demo his life.
