If this game allows plugin system as adopted by many more games..
It'll put some creativity in the community and server admins. And in some months there would be lots of server based add-ons That would be run by a server client instead of running the game with exec server.cfg command.. This is a nice feature and must be in the voting list and get implemented..
It'll also ease the server based leaderboard and rank which may get implemented in future
Suggestion:: .lua scripts would be easier to implement and use