I think back in my day, you needed AABB at higher including maths and physics for an unconditional offer. I got a bit less than that and got a conditional for BB at advanced higher (maths and physics). Not really sure if it translates over to now though as I believe universities ask for a bit more in general. Just remember that you get 5 choices on your ucas form so you can choose 5 different unis with a range of entry requirements. For physics and maths, that leaves you with 7 I think (Edinburgh, Glasgow, St Andrew's, Heriot Watt, Strathclyde, Aberdeen and Dundee)