The assessment centre involved being put into a group of about 5 or 6 people and completing a group activity with them. After that, you are required to give a presentation with your group.

It was interesting- first time they ran the type of interview where they left me alone in the room for around 20 minutes to complete a case by myself and present it to my interviewers. Very little guidance but it let you take the case in the direction you thought was best.