St Andrews Course Flexibility

How flexible are the options for the first year of study at St Andrews in the Faculty of Science? I hope to apply for Biochemistry MSci and would like to do Spanish alongside. Do the other modules I take apart from the Biochemistry ones have to also be science-type modules or are language modules available for science faculty students?

You may be able to take up to 80 credits in total from another Faculty, though this will depend on the popularity and availability of the modules you wish to take.

We were told at a recent tour that they have to be same for example if it’s a Bsc then other modules need to also be Bsc and likewise if you study a BA then it’s only BA modules you choose.

This is wrong.

is this something that has changed from my day then (graduated a couple of years ago)? it was always the case that you couldn't cross dress faculty of arts and sciences, which was why Economics and Psychology could be taken either as an arts of science

2. The following subjects shall be recognised as qualifying for the award of any B.Sc. or M.Sci., or M.Chem.
degree:–
(i) Computer Science, Mathematics, Statistics;
(ii) Astronomy & Astrophysics, Physics;
(iii) Chemistry, Geology;
(iv) Biochemistry, Biology, Psychology, Sport & Exercise Science;
(v) Economics, French, Geography, German, Logic & Philosophy of Science, Management Science;
(vi) any other subject qualifying for a degree in another Faculty.
[...]
5. A student who has gained at least 240 credits, of which:–
(a) at least 100 credits have been gained at Second level;
(b) at least 200 have been gained in subjects listed in Science Regulation 2 (i) - (v) above;
(c) at least 40 have been gained in subjects listed in Science Regulation 2 (i) - (iv)
may be admitted to an Honours B.Sc. Degree programme