You unlock guns by reaching the level required to unlock that gun, but if you want to use it in your custom class, you have to buy it using COD points.
in black ops multiplayer, everything's unlocked already.
It is based on guns
Gold weapon camo is 50,000 COD points. It will be unlocked at 14th Prestige Level 22. Because it is unlocked at this level, it doesnt cost 250 COD points like any ordinary weapon camo
well, for online u jst find out which gun you unlocked and it should say NEW next to it and all you have to do is click it and it will pop up as your primary weapon
They are unlocked as you rank up but you have to buy them.
just press a on it
Yes there are permanent.
yes
there isnt a number code.
In my opinion black ops is better because I like the guns better
MW3 is after COD black ops.
These are automatic sentry guns.