To get the extra custom classes you need to prestige 5 times
You need to unlock the weapons.
you unlock it at lvl 18...but no need to boost
yes
you will need to get to level 50 to unlock it
If you're referring to call of duty, yes you need to complete campaign to unlock zombies.
You need to kill 5 enemies with car explosions.
You need to unlock every gun in a single category that has a special weapon in it for it to be available to purchase.
you need to buy call of duty mw3 and you need to register for call of duty elite
You unlock It o use freely after level 4 of which you can use create a class
you need to complete the game first then go on to spec ops and there it is dead ops.
on call of duty modern warfare 2: no you cannot get golden guns =( call of duty 6 is black ops not mw2 idiot far as the golden skins could be because there's a locked camo that you need 14 prestige to unlock
Ten Tactical Nukes to unlock the emblem.