Need help with glitching

I was trying to glitch the Juggernaut Outfit into Free Mode, but nobody plays this game mode. I was waiting 1 to 2 hours for 3 random people to join and who stayed as well, but when I start the game I wasn't able to perform the glitch because they attacked me or didn't let me be the Juggernaut.

I want to ask here if somebody wants to help me with it, I will help you at something too if you need it. I would really appreciate it.

You can add me on SocialClub: MisterStahn

I'm from Germany and play a lot of GTA :P

I can help you out. I will ask my friends to help too.