yes u can
From prestiging in modern warfare 2 u get an extra custom class and new emblems and titles.
When you enter prestige mode, you reset your rank, you'll have to earn everything from weapons to perks to challenges. Titles and emblems are not reset though so you can keep them. You get a new challenge group called "Prestige" which can earn you some cool titles
technically speaking, no. you might be able to earn it for private, but it won't go toward xbox Live (or equivalent). You have to play like everyone else.
Reach Wave 15 on all the Special Ops Survival Maps. For future reference, there are lots of MW3 Title and Emblem Guides online that show all the Titles and Emblems, and explain how to earn them.
Go to www.themodernwarfare2.com you will find all you need to know
The fastest and easiest way to earn a Ninja Saga emblem is by participating in daily quests and events that offer emblems as rewards. Additionally, completing specific missions or challenges can yield emblems quickly. Engaging with the community, such as joining a guild or participating in tournaments, may also provide opportunities to earn more emblems. Regular gameplay and staying updated on special promotions are key to maximizing your emblem collection.
You can't. You must earn them all again on Xbox Live, as well as the ranks, perks, weapons and emblems. Infnity Ward and Microsoft did not allow players to do this because players could cheat to aquire everything, which they do anyway by using hacked servers.
The titles came after she earned them, not before.
Play multiplayer matches, get kills, win wager matches and complete contracts
you cant you have to earn them by winning matches or getting badges
None. She died at age 15.
by playing "ranked" multiplayer matches. you earn money in these matches and at a certain amount of money you level up.