Glitches/Bugs followed by a description:
Zombies Leaderboard glitch: When you go to online on Zombie mode and look at the leaderboards it freezes your Wii (I heard it has something to do with having over 50 Allies and only happens when viewing Allie's section of the leaderboards).
ADS Reach Scope glitch: Almost always if you have your ADS reach anything but zero, when you ADS with a scoped weapon and then go out of ADS you will be aiming somewhere else than you aimed out while you were in ADS.(Does not happen using the ACOG scope) (This only happens using the Wiimote and when not using Precision as your scope aim style and this glitch originated from MWR)
Zombies and Multiplayer Playercard glitch: When in a lobby that is about to start the match, the game will not allow you to view players Playercards from the lobby, and sometimes will get stuck on someones Playercard while not showing it and wont allow you to select "Create a Class", "Killstreaks", or any other option in the Menu.
Multiplayer Map Vote glitch: Sometimes when you join a Multiplayer match and vote for a map the game will not register your vote in the vote count, and also sometime the game blinks from an already selecting a map to being able to vote, this blinking happens over and over until the game starts.
Respawn Screen glitch: After you die the screen goes black but your HUD stays up. The clock counts down and you can hear everything around you but you just don't respawn for 5-20 seconds.
Invisible Gun glitch: At the start of a match your gun doesn't load and you can't see it or your sights. This lasts for minutes and in some cases whole games. All you can see on the screen is the pointer crosshair ( you can see your gun momentarily when you run, switch weapons, and even shoot.)
RC-XD glitches: If you run into somebody with an RC-XD near a wall, the people clip into the wall and get stuck. Also, sometimes when detonating an RC-XD right next to someone, it only gives me a hitmarker.
Text Message freeze glitch: I tried sending a text message to all my allies(about 85 allies) as an announcement and once i pressed "send" it froze my wii.
Unbound glitch: The problem is now with different button than before.
Tactical Grenade scope glitch: When you hold your breath using the CCP you throw a Tactical Grenade.
Unbalanced Teams glitch: In some games there will be 6 players on one team and the teams would be unbalanced.
WMD Map glitch: On the map WMD you can jump out of the map.
Havana Map Size glitch: It seems that the Havana map is stuck in it's Wager match form and causing the map to be a lot smaller than it should be and smaller than it is on the mini map.
Motion sensor in Hardcore glitch: The Motion Sensor does not work in hardcore mode and makes the equipment useless.
Classes in Miltiplayer and Combat Training glitch: Class names are shared between Combat Training and Multiplayer so when you change the name in one it changes it in the other mode too.
Glitches/Bugs that are not described enough:
Sound Issues With Headsets In Matches Not Lobbys
Combat Training Freezes
Hacker perk not showing enemy equipment through walls (Could someone confirm if it is supposed to or not, thanks.)
Zombie mode asking to download patch when it is already downloaded (problem not happening with multiplayer)