This XML Add-on Scenario is where Trevor's Business is Quite Successful.

requirements: 
menyoo by Mafins
ScriptHookV by AB Development | http://www.dev-c.com/gtav/scripthookv/
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installation:
open your files where your gta main directory is 
then do this path 
grand theft auto V > menyoostuff > Spooner 
then drop the .XML file there 
and then load it up with menyoo in-game