same here, i i notice a huge lag after they take off the iron bangle event

I'm pretty sure Crucible doesn't have dedicated servers in the same way as other multiplayer games. Instead the majority of the 'accounting' of what is going on in a given instance within crucible is done through peer to peer, just like MW2 was. This means network stability and lag can be pretty inconsistent depending on what sort of connection the host has. I always sorta assume this is why sometimes I get phenomenal lag in destiny and other times it works fine.