[ForT]

Great idea, but I do not know if this would affect performance if many players are online, and I think the final file size is not a problem if the server is hosted in a VPS with several GB of space, and in addition we could exclude automatically old script with a simple script, so you can use the example format: "nickname.date" or "nickname.loginid".

Another implementation could be done with FCNPC, the administrator could see the replay directly from the server using FCNPC_StartPlayingPlayback without having to download the file, however I do not know if FCNPC can access files directly from scriptfiles.