Un-nerfing thermals, with a twist.

[Roomba]

One of the main issues with old-style thermals, as far as I could tell, was that there wasn't any real counter to them save killing the detective/HOS at round start and spacing them. You could find the most secluded spot in the world with all the cameras cut to order a crate/eat a dude, and if the detective happened to be passing by, even one minute into the round, he was perfectly justified in shooting and spacing you and there wasn't anything you could do about it save bemoan his unfun ways with your dying breath.

Maybe it'd be better to give the detective more avenues for actual forensic science than magic x-ray vision.