As far as im aware (i say this in good faith, based on what i know but i could be wrong, i encourage you to also check) you dont actually need to follow the course map or their "recommended" path. Long as you complete all your subjects and be careful not to screw yourself over, you'll be fine. Just closely scrutinise the handbook entry for your course. You still need to do prerequisites of course, if 2nd year banking needs you to do first year economics, theres no way out of that. If its just recommended you do x amount in x year but it wont impact you, then you're free to go for it.
In my degree i was "recommended" to do a bunch of "easy" subjects in first year. Didn't do any of them. I'm saving them up for my final year. Smooth sailing so far, haven't been crucified by the faculty yet which is a good sign.
Key: 99% of the time no one actually checks which units you take beyond the automated system. You wont get caught. The only time they check is at the very end of your degree when you apply to graduate. They check off all the criteria and subjects to make sure you met whats stipulated in the handbook. If you have, you graduate. If you haven't, you need to go back and rectify it.