https://www.youtube.com/watch?v=M4WVzcyc65k
Though the original video was removed for some reason, YouNews grabbed a copy of footage purporting to show a Vietnamese tactical team running a drill where they scale a wall using the momentum of an officer being pushed upward by a long pole.
Either way, it looks like something you want to get really good at before trying it in the field.
• Vietnamese Tacticial Training (YouTube / YouNews)