No audio from behind the camera

How is the audio via headset? Can you hear footsteps from behind a wall or approaching you from behind like in MW3?.

Lets say you are playing Decoy, defending. Putting one of the camera by one of the capture points where the enemy is going to come from could help. Or you can guard the most common spot and put the camera behind you so the enemy can't come from behind or
a blind spot. I do not use them either but i have when i first started.

With audio from the fans watching? He was at an event presenting the demo. Someone snuck a camera in a recorded about it. It's much longer than the demo on the dashboard.

my mate records his gameplay using a video camera and a tripod, he sets it up slighty behind him or sometimes beside him depends on what game he is playing. For games like battlefield 3 he puts the camera slightly behind him on the tripod, i hope this helps.

There's more than one camera angle and I only use ones behind the car