The final of the Sin units (For the most part)! Actually the first of the Sin units, this is the Prototype Sin. It's upper body is slightly bulkier and more armored, and it's arms are synthetic materials more similar to skin than to metal. It's a unit whose arms are actually repaired remains from a decaying "semi-organic giant", and the weapon it utilizes is the same; a weapon capable of being used correctly only in the arms of that giant.
It's output, which is affected by the arms, is 40% higher than a Mass Produced Sin. They arms are also giant receivers for the pilot's physical abilities, and can increase their strength tremendously, which allows the Trident to work as an effective weapon.
It utilizes a slightly different cockpit design from units 02, 04 and the others; slightly older, but designed for maximum efficiency of the arms, having a more interactive slave system where the arms are actually controlled manually through the pilot's arms. Unit 04's cockpit is a more modernized version of this cockpit, though it lacks the expensive physical amplifier capabilities.
And that's it for the Sin units, aside from designing their equipment. The next Sin unit to be rolled out in the future will be the High Mobility Sin, which will use some of the same parts but ultimately look different, skinnier, and lighter! Also, a pair of SMGs.