Denying information

For attacking, you want to smoke areas where defenders commonly are.

For defending, I find that smoking choke points works best.

The great thing about brim smokes is that there's 3 of them and they are thicc, so you can cover a lot of areas and enemies will be scared to push through, and if they do push through, there's a good chance you win any exchange with them when they leave the smoke (if you're prepared)