The Amadeus Syndicate made a personal modification of the Iron Nokana, it equipped with tank treads instead of wheels so it could move faster on any terrain, and has even more improved armor and firepower.
Morden constantly appear to support this vehicle with his bazooka.
There will be always a Masknell helping The Iron in the battle. Morden will constantly shoot rockets from his bazooka, and when not, he will enter the cockpit and fire a series of cannon rounds or rockets, open the chassis to use a spinning blade, or try to trample the player with the tank.
- Like all Metal Slug 4 bosses, it was made using old sprites from previous Metal Slug games.
- Though it is part of the "Iron Nokana" series, being a modified version, this vehicle's design greatly differs from that of its predecessors.
- Likes all of Amadeus Syndicate unit in Metal Slug Defense and Metal Slug Attack, it was marked as part of the Independent faction.
- Although it was part of the Iron Nokana series and has more HP than its predecessors, showing The Iron was improved than original Iron Nokana.