Black-Ops without live?

As you can probably tell, I've been playing a lot of CoD and so can talk about Black-Ops.

The first part is, for the multiplayer mode, there is no settings. If you plan on playing a custom game (Like every other game in the world) then I'm sorry, but you can't. You have to player certain set-ups. If you're going to take away our settings, at least give us bots for the non-livers.

Second, the enemies are a little biased in their attacking. If your teammates are standing right next to them in the open and killing them and you're behind a wall, prone and move ever-so-slightly so that you can barely see the side of their mask, they will all aim at you and shoot.

Third, the game has a lot of bugs. To name a few (Rebirth) there is a glitch where if you don't wait for Reznov before entering the area with the scientist (As Mason) then half of the conversation will be missing (Although, this is not important. Subtitles still work and the action happens)

But the worst part of the game is the following:
Error dobj for xmodel.

Yes, I am being serious, a slight error is the problem. On Rebirth there is a hard part outside the bio-base when playing as Hudson. This part is 70%-90% through the level. WHATEVER YOU DO, WHEN HE TAKES OFF HIS MASK, SAVE AND EXIT!!! (Don't care about the inconvenience, you'll be more annoyed if the Error comes up.

What happens is, when you are progressing, there is a chance that a faulty model spawns that has too many "Bones" and so the animation would be glitchy. Yep. Bones. In this case, bones are the strands that can be animated to make realistic movement. Use Pivot to understand if you have too...

The enemy may spawn at any point and when he does, you have to restart the entire level (Alternately, if you did what I did, the game will continue from the last save) and so you have to progress again. By the way, if it occurs once, don't think it wont happen again.

I'll explain the error in a little more detail later but for now, I'll explain what has actually happened. I played through the level (Took me an hour) and finally got past the enemies into the building. I ran inside, shot some enemies and... Error. I then had to re-do the whole level (Got stuck on one part, took a while) but made sure that I saved after the annoying parts (Mason, Before compound) and got to the part. Boom, Error.

Wait! What exactly is this error? How do you know what's causing it? The game stops immediately and the screen displays just an error message:

[All text in italics are a quote]

Error
dobj for xmodel
'c_rus_spetnaz_body1_g_larmoff' has more
than 160 bones (see console for details)

A Exit 

As you can see, this is annoying. The game was made for those with Xbox Live and they can't be bothered to fix the game. I am restarting the level (Luckily, from the previous checkpoint) but would like to find a way to stop this. Treyarch is the Justin Bieber of CoD.