So in the Mission Black Garden there is one area where no vex spawn. It's right in front of you when you reach the point where your ghost says something like "hurry they are powering the gate". Once you go further straight on then make a right there is that digitalized blue gate. When you get to it there is an invisible wall right before you can even touch it. [b]I was wondering if anyone else saw that and have any idea what it is. [/b]I hope you understand what I have said xD