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The genius of strategy, the unrivaled presence of Special Forces soldier Park

SSU, the strongest of the sea! The 707th Special Lease Team that provokes them

The final death match depends on the first eliminated team!

Quickly and calmly, anti-terrorist rescue mission!

A counter-terrorist rescue operation that involves a death match, you can never lose!

40kg mountain march, which team is eliminated in the death match?

Navy Union vs. Night Coalition, night coalition operation that puts pride on the line

Who will be the final winner of the night joint operation?! And... SDT & Marine Corps Search Team are back again!

There is only one remaining ticket to the semifinals! Who will take over?

Three units' desperate struggle for a ticket to the semifinals

Seoul Recapture Operation, which unit will advance to the finals?

707 vs SSU Semifinal Tournament! Who will win the final ticket to the finals?

What will be the strongest unit that will take home the title of ‘Steel Unit’?

The Steel Comrades Association is starting! The fierce battle of steel troops for supplies!

Exploring the inner thoughts of the crew through Steel X-Files

Steel Unit, an unfinished story!

Now I can talk!

The Last Side Story of the Steel Unit,