Thats a nice rescue pack arrangement.
{FULL DISCLOSURE}
I carry small hand held pruning shears in the woods when I'm stalking.
The little cheap throw a ways like you get at home depot or Wal-Mart with the little coil spring return.
Tied right to the side of my pack on a lanyard on the right side so I can hold the rifle with the left arm and do a reach around for getting through a briar patch.
That's actually a pretty smart idea.