yes, but no one really has it because all titles and emblems can be unlocked with the challenges given but there are also hidden challenges and to get the spinning 10th prestige emblem you must be prestige 10 and complete all prestige challenges, i doubt many people have done that but it is possible.
you can't find it here but what you can do is look on the leader boards then look at hit titles and emblems and there you go
if ur talking bout online u have to level up. to get the emblems and titles who ever wrote this above is ignorant here is a link to get to where u want to go. http://callofduty.wikia.com/wiki/Titles#Titles the first guy is partially correct, but most titles and emblems are acheived by completing challenges. there are also titles for hidden challenges like std
http://callofduty.wikia.com/wiki/Callsigns
By getting into a tenth prestige lobby.
You gain titles and emblems by completing certain challenges on multiplayer, check your barracks for the challanges. Here is a list of all the titles and emblems for call of duty modern warfare 2 on the Mordern warfare wiki: http://callofduty.wikia.com/wiki/Callsigns
Complete challenges and level up.
Your face thats the answer
It only resets your guns, challenges, gun unlocks too and puts you back to level 1. You keep all of your titles and emblems
no it'll erase your game
As long as there Xbox is J-Tagged then yes they can
Well, it depends. You only get titles and emblems if you do certain things. For example, you use stopping power a lot. Finally you get the emblem for it. You could just get a few emblems and still be a level 70. It depends on what you do.
Barrett .50CAL. (Don't camp, no one likes campers or noobs!)just try new weapons and just have fun. If you are looking for a certain title or emblem go to youtube.com and type in mw3 all titles and emblems