Ok, so I apparently picked up Warframe a while ago because when I (re)installed it I had a level - or rank - 3 Loki. After playing about an hour I'm now up to 6. Is there way to distinguish which missions are story missions - if there is such a thing? Whenever I jumped back into the game some evil dude had put something on my leg; Lotus was telling me that he had done something to my warframe, and we had to find out what exactly was going on.