Did someone say robots?

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I think Cygnar is too smooth for an Imperial army.

Models by Kotobukiya:

ARMORED CORE 1/72 GA GAN01 SUNSHINE
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Armored Core V Vengeance and Agni
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Frame Arms Kagutsuchi
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I think these all give a gritter feeling than most mecha. Forbidden Gundam is the only hunchback like model, but it's pretty dorky. Votoms are also an option.