On questions about INTEC in particular,it wil be answered here.
Non Muslims will take theology and philosophy + ethics at INTEC, whereas Muslims will take Islamic Studies.
For roommate at Akasia, Cemara, typically it is assigned based on the order you check in at hostel. 3 people to a room and 2 rooms per apartment. So, say 1st to 3rd student that report in will stay same room, and 4th to 6th student will stay next room and all 6 in same apartment. Typically, those in same program will be housed together, although all of you guys will reach other rooms within 3 minutes.
Orientation at INTEC, there would be a number of talks/briefings. 6 meals a day. For those with special dietary needs (vegetarian etc), do inform your Orientation Committee (OC), and they can get for you. For some programs, like US Program, I believe that there would be placement exam, to decide which class you would be in... Guess it would be english (called verbal) and math, ala SAT.
For Muslims, there will be prayer areas allocated for you guys and for non-muslims, there will be non-muslim sessions. There might be games too over those orientation time.