The whole process was relatively quick. Application and tests are quite typical, nothing special. Phone interview is purely competency based. Tell me about a time when you showed... Why MS, why operations. AC was only 3,5 hours and very casual. MS booked me a nice hotel and paid for the trip. Everyone's very nice and the London Office is amazing, although it might be a bit difficult to find as there's no sign saying MS outside. AC started with a group exercise. Again, standard text book stuff. Had a budget, 30 minutes. Everyone had their priorities what to include in the budget. Half way through they gave us new information. Contribute, don't dominate, listen, ask questions, keep time, tell others to move on if short of time. Then there was a short networking session with 3 guys on industrial placement. Gave a good insight. Finally, 2 interviews. If you felt good with the phone interview, these will make you feel even better, since they are exactly the same type of questions. Maybe additionally something about regulations.