Quote Originally Posted by Norfolk View Post
In short, a Commonwealth Battle Captain acts as a sort of filter between the Company/Squadron OC who is fighting his command and Battalion/Regimental HQ, while the Company/Squadron 2i/c is with the A1 Echelon.
FYI, the role you describe is usually handled by the Company XO (2IC) in most units. The CO "commands" the company, and talks to the BN CO when necessary regarding major issues, but focuses on fighting his company. The unit XO usually keeps BN informed with routine reports and traffic.