You start the game with F.N.G. To do this you must go on campaign.
You also unlock F.N.G in multi-player, it is you first title on your callsign.
3arc unlock
how do you unlock Municion viva on call of duty modern warfare mobilized
You need to unlock the weapons.
3arc unlock
you have to buy them. you cant 'unlock'
an achievement
3arc unlock
You have to beat the game and then its says you have unlocked to unlock it
its one of the first things u unlock
you can unlock it with you're first killstreak award unlock
you unlock it at lvl 18...but no need to boost
You unlock it by getting to 10th Prestige.