wondering

true that.

Yeah, the last time I tried it, works well with fast knife

That was with some of my friends awhile back

You get an error so you aren't able to finish the game.

Not always, if you use it correctly, some of my friends got errors during ZM but I lasted on wave 1 all the way to wave 30 but then i died trying to knife Goliath D:

Go figure.

give eror _!_
mother f.ker noobs make good haks or shut up

bitch if you have problem using someone hack then gtfo make your own -.-

Err, there's a server side check on these client errors, you can't patch them. Or you'll have to hack the servers. Then I'll wish you all the best in jail.