I bet running in your pack is a great way to optimize your gear.
Great way to wreck your knees.
I might run across the street these days, but once I retired from the Army, my running days were over. Even though I wasn't a grunt, my knees got trashed by Army runs. Anywhere I go nowadays, if I can't drive, I'm going to walk. And if I'm getting chased, I don't plan to die tired.