Working on my custom pserver

Can anyone assist me? I'm trying to learn how to make a damage notifier for whenever someone gets a white bag, such as, (Player) Has obtained some Legendary Loot! (Name) with (damage dealt)

https://www.mpgh.net/forum/showthread.php?t=1419787
This would be a good start, try checking the tutorial section before making a request for something, and try using the Help Request section when requesting as well. But yeah, that tutorial should cover 99% of what you are trying to do, excluding the damage dealt part but maybe you can use the tutorial and try adding the damage dealt part to it yourself as a way of learning