If they do not obtain their diploma, what career management options do they have? They can leave the college. In that case, depending on the reasons why they did not obtain their diploma, they may have to reimburse part of the tuition fees for the time they were in college.
Otherwise, they can become non-commissioned military, in a trade of their choice, on condition that space be available in that area. They can also join the reserve force.
If they complete their basic officer's training, which ends at the end of the second summer, they have more options. If they don't complete their basic military qualification, then the situation is somewhat more difficult.