I have no problems in any other black ops game or other games for that matter.
My xbox is on a static ip as always and is "DMZ" from my firewall. (meaning for all that know that my xbox shows on the internet side of my router firewall and has no restrictions. MY NAT is open too.
Its bad enough that black ops 3 on xbox 360 freezes alot and glitches. but itd be nice to hear the people in the game which has only happened once in a lobby and apartently from what i heard from that guy was alot of people are having chat issues without a resolution.