I think its obvious that cloaking is one of the lesser used armor abilities, trailing behind sprint, armor lock, and jetpack.
But can you blame people? Full invisibility includes, crouching all the time, no radar, and no sound.
Crouching was fine for balance, Radar jamming was weird but it made sense and can be helpful, but the deafness is just too much.
This may seem stupid but really it would make cloaking much more effective.
Yesterday I was using cloaking on team slayer, asylum. I was crouching and completely invisible and I am assassinated out of nowhere because I could not hear the enemy sprinting towards me. (Not to mention your pretty loud when you sprint)
I am sorry but in no game should an invisible person be assassinated.