In Multiplayer; Only one except if you have warlord ( Warlord is a perk that allows you to have 2 attachment on your gun)
you go onto the class of the gun you want multiple attachments for the you go down to perk 2 and you should see warlord there you have to buy it if you haven't already.
Also I want two attachments not one but if there is just one attachment that is really good feel free to add that as well.
You have to have at least 950 points to get a gun from the mystery box in black ops zombies.
You cant exactly make a gun in black ops, but you can customize a gun in multiplayer create a class mode and play online (or offline) with the customized gun.
Thats not on Black Ops
The 12th gun you get in gun game is the HK21
no
Dragunov.
eeewr4r
how to play destroy the ZSU gun emplacement in Call of Duty Black Ops
when you are a begginer yoou use this weak gun. that is the most used gun in black ops 2. Please add me my name is Hunterstrong563
There are many attachments. It just depends which gun it is. Each gun will have its own special attachment. Hope my answer helped.