unlock at rank 41 after completing "Rival" challenge.
There is only one COD4 emblem in Modern Warfare 2, and you have to complete the "Carpet Bomb" challenge, which is to kill 5 or more enemies with a single airstrike.
get all 3 of your killstreaks within 20-30 seconds can't rememba which
To get the gold cross emblem from COD4 its 1,000 kills with an AC130 but the MW2 10th is unexplained by IW and has never been leaked since IW will not say. People will say it is from completing all challenges, however that is not true. The rumor is you need to find and complete a secret challenge to earn it.
To get the mw2 nuke emblem you have to get 10 nukes OVER 9000 joke, 10
get 2500 headshots
yes
Get 25 AC-130s
There is no rhino emblem. Unless you are talking about the Ghost emblem, in that case it would be reaching 10th Prestige.
call in 25
The hyena...You have to get 50 kills with a RPG.
10000 headshots with snipers
Complete ak-47 veteran2
kill 2 people with claymors 50times
Get the game winning kill with a Riot Shield.