I'd specifically like a plugin that will log the % completion of a team in a coop campaign. If they reach the rescue vehicle I'd like it to record all of the survivor's healths. Ideally it would record the name and Steam ID of each player on the team (at death), their surviving healths, their % completion, the map name, and the date.
I'd use this to make a web interface for a server leaderboard so we can record how far people got in coop campaigns. If this is possible I'll be setting our server to Expert and removing ALL healthpacks and pills. Would be fun to keep track of who got how far with difficulty settings ramped up.
I don't want to do a time-based system since that promotes racing through the levels. I'd rather reward teams for being safe and making sure they stay alive.