Me and my fireteam were doing the Winter's Run Strike in the heroic strike playlists trying to get reputation for vanguard packages, when we got to the part of the strike where you send out Ghost to open the door and fight off the waves of enemies, i went back up to the top of the map with these rocks sticking out to snipe off the enemies and before we could even kill the enemies, the door our Ghost was opening suddenly opened, we just went through and continued the strike normally afterwards. This has happened to me twice now, once in the Taken version of the strike and once in the original version of the strike and i knew that it wasn't intended to happen. Just wanted to fully aware you on this.