Yeah that's what I meant by particular A2's not being accepted some courses at Bath and other university's won't accept particular subjects, or will specify that you need particular subjects. It's really good that you are coming to the open day next month as all the information you will need will be on offer in the department on the day. Again I am not totally sure what subjects are required for either degree but it would be good to phone up both universities and to work out a balance of which subjects would cover both degree options.
Good luck
Sara