Nice hack, and undetected in the 4 days I've been using so far.
If you don't want to be banned just play as you normally would, you just have the upperhand on knowing which way they other team will be going..for example:
Dust 2 CT side..I love it here because you can see which side the team rushes and just buy a HE nade and do like 50+ dmg to everyone on their team..just simple things like that.
Don't like through walls to see where they are and don't pre fire.
Hack is easy to run and works how it should.