Before you install, Greasy Fork would like you to know that this script contains antifeatures, which are things there for the script author's benefit, rather than yours.
This script will inject ads on the sites you visit.
Highlights players in red and lets you see them even when they are behind walls. Comes with a wireframe view too which makes all the walls/players render using lines to increase vision. Also has a little aimbot that helps you aim at the enemy when your cursor is close to one.