Stefan | ᕕ(◠ڼ◠)ᕗ says to YSITD https://www.ubisoft.com/da-dk/game/rainbow-six/siege/news-updates/1qBe9DIHhdmclzHegvNZi2/behind-the-wall-series-tools-of-attack 這恐怕是最好的解釋？（笑）