You have to get a certain amount of stars in the other special ops missions and it unlock them one by one till you get to echo
Special ops missions are split into 5 different sections. Each section requires a certain amount of 'stars' to unlock and these stars are acquired through other spec op missions. (easy - 1 star, medium - 2 star, hard - 3 star)
how do you unlock Municion viva on call of duty modern warfare mobilized
there is no cheats in call of duty except for black ops and that just unlock all missions and the Zombies map FIVE
You unlock it at level 36.
You cant.
you can unlock it with you're first killstreak award unlock
No.
you have to reach level 50
Get to Prestige 9.
you cannot unlock zombie mode in modern warfare. Zombie mode is only avalible in black ops.
You unlock it by getting to 10th Prestige.
you cannot unlock them you have to buy them on PSN or LIVE Marketplace