How to fix duping?

Or, more specifically, duping by using multiple clients? I have seen other servers do it but found nothing about it on mpgh so far.










Thanks,
Sorry for being noob.

Please help

There was a tutorial somewhere, not sure where to find it though.

There's plenty of ways to dupe, some require a lot of work to patch, some require simple line changes, just have active gm's on your server and you'll be fine.