ArmySailor said:
I'm curious - I've seen everything but 5C.
This may help,
5(c) Completed Service for Which Required. Applies to the release of :
an officer or non-commissioned member who, not having reached retirement age in accordance with article 15.17 or 15.31, has completed the period of service required under existing policy;
an officer or non-commissioned member who, not having reached retirement age in accordance with article 15.17 or 15.31, has completed the period of service required because of a change in classification or trade specifications or in the establishment requirements of the Canadian Forces;
an officer on completion or during the final year of his fixed period of service, other than an Intermediate Engagement as defined in the Canadian Forces Superannuation Act, when his application for further service is not approved, or an offer of further service is not made to him;
a non-commissioned member on completion of his fixed period of service, other than an Intermediate Engagement as defined in the Canadian Forces Superannuation Act, when his application for further service is not approved, or an offer of further service is not made to him; or
an officer or non-commissioned member who has not reached his retirement age in accordance with article 15.17 or 15.31, and who has completed an Intermediate Engagement as defined in the Canadian Forces Superannuation Act when, prior to completion of that fixed period of service, an offer of further service, to be completed at the retirement age applicable to him in accordance with article 15.17 or 15.31, was not made to him.
https://army.ca/wiki/index.php/Articles_for_Release#5_Service_Completed