a bad demoman - a demoman who's so bad they make the game feel like a nightm

a demoman who's so bad they make the game feel like a nightmare.

I played against a bad demoman. It was like being tortured by a baby with a chainsaw.

That demoman is so bad, I think they were born in a hospital and then immediately exploded.

I saw a bad demoman kill my demoman. It was like watching my dog get hit by a truck.