That CBM is basically thermal vision, and it is a lot more useful than you think. It lets you see heat generating targets (non-zombie animals, robots) that are on the other side of walls or in areas that you cannot see directly yet. I use it when I’m in very confined and dark spaces, like the underground portion of the National Guard Base.
Personally, I went full cyborg, because the flesh is weak. I’ve installed every CBM I can get my stealers on. I’ve got just over 40 or so now I think, with around 16,000 bionic power. I’m getting ready to supplement it with the Prime mutations. Already have enhanced hearing from my first hit of serum, which seems to stack with the CBM for hearing, because I can hear a zombie smack a wall from across town.