ISS 457 Cassidian II Mobile Gunboat

The alliance's "Colonel Cassidian" has issued authorization to manufacture submarines under her name, with the production, testing, and release of her Type I being carried out by the "Kalenni" industry, which focuses on the old Earth style. The results of her Type I testing were not ideal. According to the testers' feedback, "I will definitely not stay in a ship filled with thick smoke, without large attack methods, and without any ergonomic equipment for even a second." Therefore, Type II has undergone renovations and modifications based on Type I, including but not limited to adding railguns and automatic gun defenses, adding a NERA armor belt in front of the ship, adding a chair and other size modifications to the captain's cabin, and having Colonel Cassidian personally record the "sweet" broadcast. Although the current Cassidian is relatively small in size, But her fierce firepower can deal with most of the crises in the Ice Ocean, At the same time, her ship type inevitably reminds people of the warships that extended the era before losing contact with the Earth Federation government, but that is already an unreachable past. We are trapped under the ice, and the brilliant sky above us has disappeared, only the frozen dome can be seen. However, we will still try to follow the glory of the past. Try to touch the unreachable starry sky with your hands

Cassidian II Submarine Development Log - Europa Alliance Naval Equipment Department Archive Confidentiality level: restricted circulation Recorder: Naval Engineering Director Herman Reiss

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[Date unknown/presumed to be the 47th cycle after the major collapse] Project Code: Anvil (ANVIL) Goal: Develop a low-cost, high firepower attack submarine for suppressing separatist strongholds and raider fleets.

Since the Great Collapse severed its connection with Earth, Europa's orbit has become a magnificent prison. Our ancestors once built space elevators here, tamed the icy ocean with the technology of the core era, and even transformed the deep sea into a theme park - those genetically modified beasts swimming in sightseeing tunnels have now become the most headache inducing threat for submarine forces.

The engineers of the alliance were able to barely replicate the electromagnetic cannon of the extended era, but the charging speed was three times slower. During the last test, the fragments of an old railgun burst through the five decks, and the maintenance manual said "It is recommended to use nano repair gel". God knows how many years it has been out of production.

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[Phase 1: Type I Prototype Boat Test] Excerpt from Tester's Report: This ship is like a moving torture chamber! As soon as the engine starts, the ionizing radiation leaked from the reactor fills the corridor; the so-called 'main weapons' are two railguns that don't even have automatic loaders, and the shooter has to stand in the leaking compartment to fire and then run to the ammunition depot to carry the shells and reload; the funniest thing is the captain's cabin - there's not even a chair, and the commander has to squat in front of the control console to give orders

Accident record: -The No. 3 submarine disintegrated due to welding cracks during deep diving testing, resulting in the death of all personnel. -The sonar system mistakenly identified piezoelectric crystals as minerals, resulting in the death of four mineral mining technicians

Approval Opinion: Colonel Cassidian personally commented on the report: "If our soldiers have to defeat their own equipment before they can fight, it's better to directly issue a surrender letter to the separatists

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Phase 2: Type II modification plan Main improvement items (with explanation of alliance technology limitations):

1. Weapon system: -Replace the main gun with the "Hammer Shark" electromagnetic railgun (with automatic loading machine) -Install 3 automatic defense turrets
2. Survival: -Laying NERA composite armor on the bow of the ship -Add more diving suit cabinets
3. Humanized design: -Add a metal chair to the captain's cabin (made from the wreckage of an old sightseeing boat, with the words "Europa Ocean Park-2187" engraved on the back of the chair). -The recording system is implanted with Colonel Cassidean's voice pack (which has been tested to reduce the panic rate of new recruits by 17%).

Technical bottleneck remarks: -Sonar still misjudges piezoelectric crystals and minerals, and we believe our excellent alliance sailors will overcome this problem.

Phase Three: Combat Effectiveness Evaluation Battlefield Record (selected from the Battle of Ice Abyss 7): The first battle of Type II encountered a modified cargo ship called the 'Hump' of the separatists. When our railgun penetrated its reactor, the enemy ship's interior spewed out not plasma flames, but boxes of potatoes - their agricultural compartment was blown up. Colonel Cassidean's voice system played at this moment: 'Children, this is the warmth sent by Alliance Mom.'

Defect Report: -The electromagnetic gun must be cooled for 20 minutes after 30 consecutive shots, otherwise the coil will melt. -NERA armor is difficult to manage urgently after severe damage

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[Final Conclusion] We can't build warships that extend the era, but at least we can make submarines look like submarines. Whenever I see soldiers holding the 'captain's inauguration ceremony' around the chair dug out from the ruins of the sightseeing boat, it reminds me of what was said in history class - that sailors in the Earth era also crossed oceans with even more rudimentary ships.

Perhaps one day, when our descendants repair the space elevator, they will send the Cassidian II to a museum with a label that reads: 'Despair and Stubbornness in the Age of the Great Collapse'. And now, they have to continue burning inferior fuel under the ice, dragging leaky railguns, to defend a regime that even themselves doubt its legitimacy.

——Log End——

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Attachment: Sample of Colonel Cassidian's Speech Database Attention, all crew: If you want to survive, keep an eye on the radar. If you want to win, aim at the enemy ship's restaurant - hunger is the fastest catalyst for surrender

(Archive seal: "Notice is sufficient, no disclosure allowed - General Staff of the Alliance Navy")