[TUT] If you wanted to get 15th Prestige on CoD: Black Ops 1, here you are. (Xbox)

So, if you either lost your old account with all of that majestic experience and weapon unlocks, or you are tired of the constant grind to reach level 50, then this is the guide for you! (This sort of applies to Xbox, since the only console I have is an Xbox.)

Section 1:
(Making the rank stick...)
The first step:
Head into multiplayer and go to Team Tactical.
If you're in a lobby where a lot of people are level 1 and some prestige, you should be good to go.
The main way to check whether you're in the right lobby or not is whether you see the
two mapselections gamemodes being Domination or Demolition.

The second step:
Once you're in a game, you'll notice everyone killing themselves.
Don't panic, this is normal in the society we have today.
Jokes aside, the reason everyone is killing themselves is because it
rewards them with negative XP. If you go kill yourself (In the game, not real life, please.),
you will see it will reward you with a lot of negative XP.
You basically do this 3 times, and you'll be level 50. BUT WAIT!!!
You'll notice you'll have negative XP. Kill yourself until that negative XP becomes
0 xp, which is what is required to prestige. If you don't, you'll waste time and derank to level 1.

The third step:
After that, try to check if you're host by pressing the select button and looking at the connections above and below your name.
It'll be pretty obvious if you have 4 bars and everyone else has 3 bars.
If that is the case, then leave the game. If your bars go up and down, you are not the host.
Do not leave the game if this is the case. Two ways that I know if I'm host or not is either looking at the bars,
or waiting for people to yell at you to leave. Before you do leave while everyone is yelling at you, check to see if your bars fluctuate.
Best way to do this is to start a download on another device.
Once you've identified you are host, leave the game.

The fourth and final step:
Once you're back at the multiplayer menu, prestige by going to your playercard and entering prestige mode.
AFTER YOU PRESTIGE, GO TO THE MAIN MENU OR YOUR RANK WILL NOT STICK!!!!!
Go back to multiplayer, you'll see that you are level 50 of the previous prestige.
Just prestige again and redo steps one through four in section 1.

Section 2:
(If you want to help other people out, follow these steps, I don't think the rank will stick)
The first step:
Go to the theater lobby, go into community and scroll to clips.
Look for FORCE HOST
Watch it, at the end blue text should appear at the bottom of your screen
as well as the UI_Showlist (green text that shows what UI elements are active)
Then after you finish watching, go back to community and look for XP INFECTION.
Watch the entirety of the video, then back out and go to multiplayer.
The second step:
Go into Team Tactical, and look for the gamemodes Domination and Demolition.
Once you're in the lobby with one of those gamemodes present, wait for people to join.
Once the game starts, you want to wait until everyone in the lobby is level 50, then you want to leave.
Repeat this process as desired, the more you do it, the more people you will help.