The first round was comprised of two thirty minutes interviews, one behavioral, one case. It wasn't a classic case, but a process case. I was presented with a process in an imaginary company that has several risk and operations problems. From there, the interviewer helped me along with hints and asked questions, basically walking through the process. The behavioral portion was very straightforward. I'd recommend having more than two questions prepared for the interviewer because the amount of time spent answering questions and asking questions was about 50:50.