Man-power 101 in the CAF:
In order for a position (whether it be a desk, gate, etc) to be manned 100%, 24/7 - you require 5 pers for every position. This does not take into account sickness, leave, courses, medical appointments etc. An extra 1 or 2 members is required as backfill. If you want to put 2 pers at each gate and man it 100% you would need 10 bodies per gate(minimum). That's the math folks, approved by the CF leave manual and the chain of command.
Commissionaires work for Base Ops - they follow policy dictated to them - they do not power of arrest, detention or anything. They have power of telephone calls. A credible BASF/WASF in support of the BSF/WSF (aka MPs) is a surge capability only - a capability that will hamstring another section of the base when exercised.