Supressors mean you don’t go deaf, they reduce flash and recoil.

A better question is: Why does he wear a (poorly fitted) plate carrier, camo, a tactical helmet, shitty camo that doesn’t work, a huge flashlight etc etc when he’s literally just there are a less-usefull policeman?

The answer to that, of course, is that he’s cosplaying a cool army guy.

Analyzing this with everything I know about ICE agents, it’s probably because it looks cool.

Probably to avoid going deaf if they have to shoot civilians with it?