I'm pretty sure Joint Strike Fighters had this; something did, anyways, because I remember doing it. Was able to run along the ground with a pistol. Put time compression on and watched my little pilot do a benny hill across a few hills, then reloaded mission.
Entertainment value: approximately one to two minutes.
What annoys me is like the airport mission in COD 4 MW2. I mean, it's an airport, yet I was utterly unable to take off in a 767. Talk about unrealistic