Thawing the Pacific, Starting with an All-Purpose Arsenal

Congratulations! You've drawn a recoil energy recovery stock. It captures and stores recoil energy, then converts it into electricity. Notification: Nanoshield is now available in the System Shop. It's compact and lightweight, and can instantly form an indestructible barrier. Congratulations! Side mission complete. Reward: one super muzzle suppressor, capable of making your gunshots quieter than breathing. Congratulations! Main mission complete. Arsenal capacity doubled, and automatic maintenance unlocked. Zhao Xu unexpectedly transmigrated to another world. Even more unexpectedly, his good buddy came along with him. The good news: he got an all-purpose arsenal System. The bad news: monsters roamed everywhere, and frozen corpses were scattered across the land. The good news: he had endless ammunition, more military rations than he could eat, and all the supplies he could ever need. The bad news: these items would only gradually unlock as the System leveled up. Since we're here, we might as well make the best of it. Since Your Highness the Princess personally asked, I'll help you thaw the Pacific Ocean. After all, I hate not being able to see a blue sea. Where else would I station my invincible fleet?