The same way as leveling up normally. You still require same experience to level up from 1-70, and still gain the same experience as non-prestiged.
prestige mode is basically trading all your earned weapons and returning to level 1 for a different emblem. you can prestige 10 times.
Get to level 65, and go into the Barracks and press Prestige Mode. There is a limit of 10 times to prestige.
you will have to play multi player. and you will have to reach level 50, 14 times to reach prestige.
get to level 65 and level your experience bar up all the way. go into the barracks and goto enter prestige mode.
when you get to level 65 you then have the option to do it all over agen and then you frends no how good you are.
10 prestige level 70 commander
Play through each prestige, when you hit level 50, go to your playercard and hit Prestige Mode. You must do this 14 times. :) But be careful as you must start over each prestige.
You cant you have to unlock prestige mode after level 70 and go up to as far as prestige 10 though call of duty world of vengeance is out in November 2011 and you can go up to prestige 40!
When you reach level 70 go to the barracks and there will be a option called prestige mode basically you restart with nothing except your titles and emblems and you unlock new challenges and its rumoured that you dont need as much XP points to level when you are in prestige mode.
Prestige mode removes all perks, weapons and kill streaks leaving only your accolades. What prestige mode does is shows other players that you reached the highest level and started again from the bottom, thus proclaiming your l33tness.
It basically means you restart you multiplayer. But you get more respect if you do it.
Yes, and it will likely go to 15.