Well there are two ways that you can get them in Black Ops.You could get it in campaign and/or in multiplayer.To get it in multiplayer,you can get it from a care package randomly.
Unfortunately, unless you are a modder of somesort, you cannot keep the Death Machine in Zombies. It was made as a temporary perk like any other perk in the game. However in multiplayer you can get a Death Machine from a carepackage and keep it until someeone kills you or you run out of ammo on it.
You have to have a machine gun, dude ask me I'm the expert.
There is the Thundergun(Upgraded is Zeus Cannon) and a new freeze gun, a.k.a. death to zombies I don't know too much about it.
Ray gun, all light machine guns, pack-a-punched weapons ect
The is no MG 42 in Call of Duty Black Ops so it can not be used to kill zombies in zombie mode, but it is credited with leading to the development of the M60 machine gun which is available for Call of Duty Black Ops
If you mean by the 'Death Machine' it is a turret you put in your hand and just shoot automaticaly.. (; how you get it is that its just like getting a nuke , or a ammo. It just automaticaly appears.
you get it in a care package rarely its called a death machine in game
Only in zombies.
ak74u
PISTOL
M14
the minigun is a powerup or killstreak known as the death machine