I'm guessing you mean MW2 and the challenge is one where you have to get a 10 killstreak without having any killstreak rewards equipped. For the record, it's inspired by Mario 8-bit but it's meant to be Soap McTavish.
Get hacked
first of all its not a Mario emblem its captain price. You get it when u get the behind enemy lines title and u get that by getting a 10 killsteak without any killstreaks eqquipped
To get the Mario looking emblem of Captain Price you must get a 10 kill streak with no killstreak rewards selected. To clarify: Go into your killstreak reward screen and untick your 3 rewards then back out. Get a 10 Killstreak like this and the emblem is yours.
because your clan has to be like lvl 5 or something for the emblem to take effect.....once ur clan is a high enough lvl the emblem will start to appear
to get the harrier moving emblem you have to call in 50 harrier strikes.
Their Emblem you twassarck
Practice. . . Lots and lots of practice
Be 10th prestige
See related links.
you might like the call of duty wikia (see related link)
Complete "Master Chef III" challenge.
2nd prestige