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.
Locks the aim to the nearest player. Doesn't check if the player is behind the wall so it can make movements hard. Also doesn't auto-shoot. You have to sight and shoot yourself.
Shows players behind walls.
NOTE: Everything is enabled by default.