Yeah we had Prop Hunt, which was basically hide and seek but you could be a prop that was somewhere on the map and you blended in to something, and the part about not many playing it was a large part of reason why we ended up removing it a little while back.
From past experience playing Hide and Seek with friends in lobbies is a lot more fun than Prop Hunt (imo anyway) and like @Kyle said I'd be fine with trying some of those maps on the server.