Ok, I just saw a great idea.
A low profile spandex/nylon pouch like a Blue Force Gear pouch placed top front center of external armor to hold your cell phone.
Not only does it give you a place to carry your phone for quick access for communication but with the camera exposed it gives you a pseudo body camera.
Brilliant!
I ordered one for my lowish profile London Bridge first responder soft armor that's always in my go bag.
If you have to exfil through or around an agitated crowd, having a hands free camera recording everything from your perspective could be extremely useful if things go sideways.
Even better if you have an app that automatically records/saves to cloud storage.