Jarle braces himself against the wall, and slings his Bolter. After standing, he draws his Revolver and his Power Sword as he turns to look at the new threat. While doing so, he triggers the Melta Charges prematurely by sending a detonation signal through his HUD, and the Meltas burn the hull away, causing a rather large breach, just large enough, by luck, to cause depressurization and loss of atmosphere.