Yes it is. It was created by Treyarch and Activision, they are both American.
no american games don't work in australia
I don't know all of them, but certainly the ones with M in front of them, like M16, M14, M1911, M60, and I just happen to know that the SCAR-H is also American-made, but not in Black Ops.
You can buy escalation on the PS3 for $15.00 + Tax. ( American Dollars)
I have black ops and MW3 but I find MW3 to be better but you do get bored of it as you do with black ops but I recommend MW3 but black ops is fine.
Yes.
Black Ops
black ops is brill and can not be better .
you can't get a nuke in black ops
MW3 is after COD black ops.
Black ops
Black Ops 2 Zombies is harder but also way funner than Black Ops Zombies.
from my readings i have found Black ops to be more unannounced so my answer would be Black ops google it if u need to