You must have installed Menyoo Mod
and you must have installed Simple Trainer for GTA V
Go to GTA V root directory – open folder ‘menyooStuff’ – Go to folder ‘Spooner’ –
and in Spooner folder drop and paste IllegalCageFightScene.xml
Press F8 two times – go to ‘Object Spooner’ – go to Manage Save Files –
select IllegalCageFightScene.xml – select Load Placements
Enjoy an illegal cage fight.