Hey all
I am currently a student finishing up my 1st year university studies at RMCSj. I can offer a bit of help. Essentially, what is going on here is the exact same mission as RMC in kingston, however the approach here is three pronged. Because of Quebec's public schooling system ending at grade 11, the canadian military colleges must accomidate. For applicants from Quebec, they will commence studies here at the CEGEP 1 level (preparatory year) and then a CEGEP 2 year. From there, they will go off to kingston for 3 years of university education. Students from out of Quebec who are in need of mark upgrading will come here as prep year students, and be in the same level classes as those in CEGEP 1 and then CEGEP 2 the following year, however, because you have not been a part of Quebec's school system, you will not receive your College Diploma at the end of your 2 years here at RMCSj. Once you are complete here, you will be sent to kingston to complete your degree for 3 years. Lastly, there are students such as myself, from out of Quebec, who are only sent here for first year university studies (similar to that the CEGEP 2 students are doing). This is because of spacing at RMC Kingston and applicants are not sent to either college based off of merit, it is simply random. We do our first year here then are sent to Kingston for 3 years.
As for your question regarding required marks, from people I know here in the Preparatory system, its anywhere from high 60s to the 80s. Essentially the same as the first year university students here with the exception to maybe one mark which the application board feels you may need upgrading in or if you are missing a required course from high school.
Keep at the books and don't worry too much about being sent here as opposed to Kingston for the first year or two of your studies. Embrace it. Its a great opportunity to work towards your bilingualism. As well, things here are a lot more oriented towards the military aspect of things. You will probably be a lot better off at Basic Military Officer Qualification for it. Things can be a lot more stressful and structured here but it will make for a better officer (personal opinion).
If you have anymore questions I can hopefully answer.