taymcg12 if you are selected as a Combat Engineer MOS, they attend a 9 week course at Camp Lejeune, NC. This is an MOS school and would only be attended once you commission are selected for the MOS. It would not be a part of your Midshipmen training. This is a highly requested MOS and is fairly competitive to get. Not sure on current numbers, but MOS numbers vary by the needs of the USMC and are reflected with available spots for each TBS company. I went through many years ago, so the numbers might have changed. I think we had 5-6 billets total available. There are a variety of jobs a Combat Engineer Officers can do. They are usually assigned to either a Combat Engineer Battalion or a Marine Wing Support Squadrons (aviation engineering). This is again at the needs of the USMC. You would work with a detailer to rank your preferences for Battaltion/Squadron and duty station and then they assign you. There are tons of different jobs within the Combat Engineer MOS, if you take some time googling you will find tons of info about their missions, warfighting functions, etc.
