Haven

Use this smoke at C Long in combination with a teleport onto the site box to create a one way to watch C Long. The enemies won't be able to see you on the box but you will be able to see their bodies and feet giving you a large advantage

Aim your smoke at the end of C Long towards the corner, put it inside the wall and move it up until you see the green indicator move up, then place it and teleport onto the site box