Been playing Survival the last few nights with long time squad mates. It's been fun as each wave gets harder and harder requiring more and more aggressive tactics.
Two really annoying bugs/glitches/whatever you want to call them:
1 - This one happens at least once or twice every night and for more than one in the squad, sometimes one of us at a time and sometimes 2-3 of us at a time. All of a sudden we cannot reload our weapons. When it happens, it does it for every gun you carry whether assault rifle or LMG. The only way to reload is to empty your magazine and then go through the reload sequence. You have to often waste ammo (a bad thing) and run out of ammo at serious times (e.g. when two big bad clunky armored guys with mini-guns barge in a room with 5 other bad guys behind them. This bug goes away after one or two more waves. Good way to die from unnatural causes.
2. I had loaded the cluster bomb kill streak weapon several times from the kill streak load point at the end of each wave. It was one of my favorite weapon features. Last night I equipped it and then it would not work when I selected it in a wave fight. It would not work for the duration of the battle (multiple waves), and, I could not get rid of it for the rest of the game so I only had two killstreak slots available. This is a serious handicap.
We made it to Wave 45 last night until we got run over partially due to bug #1.
Could not reload manually in the Special Ops mode in Co-op. Had to wait for the magazine to empty, and even then, if it said there was 0 rounds you had to pull the trigger one more time to start the auto-reload. Got wiped several times when things got hot and heavy. Really spoils the mood.