In the alpha, I noticed that guardians don't make any noises (grunts, yells, or comments) of any kind.
In the new gameplay video at around 2:20-2:22, you can hear a female hunter grunt in pain.
I personally like the idea of guardian voices being added in to the character creation, so we wouldn't have mute guardians, but not all have the same voices.
I think it would be cool and would definitely make my character a bit more relatable if they showed intense emotion in the heat of battle, like sounds of pain or battle cries that instill fear in to their opponents.
After all, how could you not yell when doing a fists of havoc? ;)
What do you feel about it? Vote and comment your thoughts.
EDIT: I'm speaking purely about sound effects, such as grunts and yells. No talking.