We have put in multiple codes that all lead to 730, We went to orbit and went to social space again to reset the session but that didn't work either.We are in a fireteam with a warlock, hunter and titan.I don't see what we are doing wrong, we are doing everything in sync, we are waiting a couple of minutes but nothing is happening. We are discarding and replacing the old unstable engines and try again but it doesn't work. Please help !!!