How do I open this tuna?

Haven't touched DayZ in a while so I decided to play the stress test. Credit to PolishedGuy for influencing me to make a video of this style. I saw his channel ages ago and wanted to create something similar. Here's his channel: https://www.youtube.com/channel/UCmc26ofcMJaZhp46rQy4lbg Follow me here! Twitch: http://www.twitch.tv/utorak Twitter: http://www.twitter.com/Utorak007 Discord: https://discord.gg/ku9qREv Instagram: https://www.instagram.com/utorak007 Facebook: http://www.facebook.com/Utorak007