Those people have hacked the game.
Certain Prestige challenges. I think they are from Killstreak challenges in the prestige section. I have the Gold/Green diamond one, from Predator Missle kills I think (1000)
There are quite a few emblems for the game and you can not have all of them at the same time because many are progressive. The Wikia on Call of Duty has been added as a related link to assist you in getting many of the emblems. While the link will take you to the emblem page and show when the emblems are given the Wikia has other sections that will be of assistance in earning them and in playing all the Call of Duty series games
You can get the call of duty 4 symbols on your mw2 emblem by every prestige on mw2 you will get a cod 4 symbol
you have to do things like earn higher ranks, finish challenges, and call airstikes, nukes, emp etc.
By meeting the dertain requirments that it has listed for you to do.
i.e. Get 10 nukes and you get the moving nuke icon.
by completing challenges and getting your ranks up.
Unlock the challenges for them.
Your face thats the answer
get 1500 kills with each guns
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
By completing challenges or raising in rank, same for emblems
Yes you do, but not your callsigns and emblems!!! =]
yup
well call of duty and modern warfare are the same it is called Call of Duty: Modern warfare and then came call of duty: modern warfare 2
Everrything resets except for titles and emblems. So yes.
Call of Duty classic Call of Duty 4 Modern Warfare Call of Duty World at War Call of Duty Modern Warfare 2 call of duty black ops call of duty modern warfare 3
Call of Duty Modern Warfare came before Call of Duty Modern Warfare 2
"Call of Duty 6" "MW2" "Modern Warfare"