I had a flashback to the day I figured out that the scroll wheel cancels the reload animation on the guns. I immediately became 10 times better at the game. Also, the zombie servers were mindless but fun.
Oh man you gotta turn off scroll switch and have specific key binds for every weapon
What was wrong with 1/2/3/4 for key binds? I played CS 1.3 -> 1.6 professionally in 2000s, never really saw folks do this.
Many people use mouse wheel for jump as well