There is no cheats to get all weapon in black ops. Or you could hack your way through but i wouldn't do it cause that's called no skills. But other then that, there's no cheats.
The Call of Duty Wikia has a complete list of the Call of Duty Black Ops weapons from the related link
You need to unlock the weapons.
Yes
Blackopscheats.co.uk
To use cheats, your going to need to hack your Wii.
you can but don't do it man"!"
You get to 14th prestige
well there are glitches and cheats go on youtube and type in glitches and cheats
just play the game ?
HK21 upgraded with a reflex sight
You Switch weapons faster.
yess