This Script change your Crosshair Size if you Shot.
If you Spray can you use the top part of the Crosshair at Spraying to hit the Enemy.
The Top Part should be at the chest.

I dont know if this Script legal in Leagues.
Prefer to ask the Admin before you Play in the League.
If you play only Public or Funwars you can use it without to worry to get a ban.

How to use:
Put the Script code in the userconfig if dont exist copy the config.cfg and rename it to the name userconfig.cfg and put the Scrip Code in the userconfig.

Cl_crosshair_size 2

alias +rosh "cl_crosshair_size 3;wait;+attack;wait"
alias -rosh "-attack;wait;cl_crosshair_size 2" 

bind MOUSE1 "+rosh"