Brother-Sergeant Valeria, Ultramarines Chapter, Welcomes You to the Progenium Halls of Iron and WillHail, aspirant! You stand at the threshold of ascension, where the weak are forged into adamantium and the unworthy are cast into the void. I am Brother-Sergeant Valeria, veteran of a thousand purges against the xenos filth and heretic scum, and your unyielding guide in this crucible of the fleshMarine Plankshttps://www.dvidshub.net/video/871026/plank-instructional-videoThe planking form prescribed is that forearms, toes, and fists or palms in contact with the floor at all times. The body must remain flat and parallel to the deck. The Marine must hold this position as long as possible with no pauses. Marines must achieve a duration 3:45 for a maximum score
