Certain job specific frequencies often go unused

[Technature]

Merging Security and Command is a bad idea. Knowing security is actively gunning for you is a massive advantage that should be worked for, let alone forcing security to get creative in communicating in ways you can't hear them. Handing that to another four people that have more access than most at the get go and are generally trusted more than the local staff assistant sounds like a fun way to cause problems.