So I was just faffing around in today's daily heroic and noticed that once you move into the main area at the end of the quest, "The Legion's Keep", I was able to open a lot of the doors, that usually spawn enemies and don't open for players, by bringing out my ghost while standing right in front of them. I don't know why but it only affected four doors all in the main big courtyard area just outside of the arena where you kill the Prime. What was most interesting was the last door to the left after you cross the bridge to towards the Prime I could actually walk into! It's completely empty and tiny, clearly a glitch, but it opens up some interesting questions. Maybe there are enemy spawn doors in other missions that will open by standing right next to them and taking out your ghost? Maybe its only for this quest? If so why? Regardless, take a look for yourselves if you like. Let me know if you run into anything else!