Character Flag/Task Based Item Globally?

[vauxe]

I am trying to find an item that is flag/task based item that is global, so it does not matter in which order it is done. For example, a certain ring is the target item.

1. Either 1 NPC can provide all tasks individually, or 1 in each zone. You have to go back to NPC/or not go back to NPC to fulfill the flag.
2. 10 (or 20 etc) different "global" tasks, Kill 10 wasps in Gfay, kill 8 beetles in qeynos for example.
3. It doesnt matter in which order these are completed, but all their own separate "task" or flag.
4. When each of these steps are completed, no matter the order, it increases the stats on the ring to the next item.

I am sure this is possible to do, but am not nearly advanced enough in programming to think about how this would be done. Does anyone happen to have a decent source similar to this I could pick apart?