Anyboy else seeing this cool public event on the Moon since the last update? Where your hud says that the swords of Crota have entered this world or something. Than a knight called a minion of Crota or something pops up with a few acolytes and you need to kill them to get the sword and destroy the other acolytes. After that you get about a minute until the sword disappears. It's really fun when it happens, it's already happened to me twice while on the Moon. I assume this has something to do with the Dark Below.