I've had 2 different issues with Halo 4, was wondering if anyone else had run into these:
First, I've been playing the campaign co-op, and it seems like if we stop mid mission for any reason, then come back and finish it we aren't getting credit for the mission when we finish it. For instance, we've completed through Reclaimer (mission 5), and can select all the missions up to that point, but it does not show Forerunner or Infinity (3 and 4) as completed for either of us. We stopped at checkpoints during the missions and restarted at the right rally point when we came back, but it just didn't count it. Didn't get the achievements either. Curious if this is just how it works in all cases, or something glitchy? Some of these missions are pretty long to require you to do it in one sitting.
Also, my game ran perfectly fine the first day playing it, and my brother's seems to run fine too, but yesterday I had constant stuttering (I guess that's what you'd call it?). Basically every 10-20 seconds the screen would lock up (as in, 0 frames/sec) for about 2-3 seconds. Kind of annoying, and I'm not sure if my old xbox is dying or if this is a common issue?
Any other GB dudes experiencing these, or have any suggestions about my stuttering issues?