2 and a half weeks out of actions is quite a bad situation for
you.
You see, in order for a recruit to pass out from BMT, there is a
certain set of criterions to be fulfilled, like going through a
certain course, going through your range, etc. By missing out on
your range, you could fail to meet these criterions. You could
however compensate for these by going for makeup range, etc.
When a recruit has OOC, he's immediately told or at least informed
as soon as possible. When that happens, he becomes like a helper
around the company for the platoon until the end of the course. He
does not have to participate in the actual activities, but his help
is required in preparing the stores, or some other minor
stuffs.
Depending on your condition and availability of the course you will
be retaking, you could be immediately goes into a new BMT course
once the current one is finished, or a few months later. There are
some who pass their BMT close to the end of their 2 and a half
years. If you are not posted to a new BMT course, chances are you
will be sent to a unit as a man, not the combat type, but the
helper type.
Hope this is helpful.