Weapon audio issues?

Has anyone else noticed any issues with the weapon audio in Halo 4?

For example, if I change weapons and start firing as soon as I have it drawn, the firing sound will be the third-person sound, not the first-person one. This makes the DMR and Suppressor extremely loud.

Also, sometimes the Light Rifle has no firing sound effect or reload sound effect until I change weapons, and change back again.

This has been happening since November 6th for me, and it does get irritating after a while.

The BR has a sound glitch according to me. Could be me or could be an actual bug.

When you reload the BR, the gun makes the sound where you put the mag back in the magwell and it seems of cue and not synchronized.

Also the problem you mentioned is also evident. I have a headset and if I turn bass boost on, the DMR pretty much cancels anything out when you fire.

P.S. BR sounds like a rubber band gun.