Great! Let's improve it more.
1. Rank list is made consistent. In single player, player can get familiar to the ranking system before getting into multiplayer. Try Cave of Terror in single player. In future, observer or spectator can see ranking by Queue (who's leading), or by health (who's in danger).
2. Already added. In Greed Sin, optional objective is collect gold. It influence a little bit of gameplay where the more gold you have, the faster hunter gets.
3 & 4. Awesome. Good idea.
5. If not too many sound, we can add it. So far when attacked, flesh hit, blood spill and heartbeat will sound. Maybe we can add it within duration of panic. ;)