Rappel Swing
From WikiRaider
Rappel Swinging is a move in Shadow of the Tomb Raider that enables Lara Croft to swing to reach a ledge or Climbable Wall while Rappelling - her Climbing Axe stays attached to a Climbable Wall above her and she can swing forwards and back on her rope.
To adjust the height, Lara can also Rappeling Down or Up. While Lara is near a wall, the Rappel Swing becomes a Wall Run with Axe.