There is no option to toggle profanity in AC3. hope this helps!
mute button
Pretty bad.... But it's in Italian
Some but you can barely hear it due to his heavy Italian accent.
No it only has good
maby assassins creed 2 bad company 2 is pretty immense tho
yes
There is blood but no sexual references.
Good
What exactly do you mean by "Adultery"? Do you mean: Is it Inappropriate? In some parts, yes. Is it violent? Very much. Does it have Adult Language? Absolutely.
They are good people
Because they want to destroy mankind and rebuild the world in their own image
Not at all, it in fact teaches you so many good values that you need to inculcate in your life.