Sorry I do not speak Japanese, but I came across your website and used translator, I get most of what is said.
I tired using a PlayStation Emulator for Windows using
ARMORED CORE: MASTER OF ARENA(JP VERSION) since all the codes here are for the JP version, but I can't seem to change the player AC to an enemy model.
Example, I tired using the player model code for, own machine character ID: 801EGA5E 0000 and started AC TEST then changed the "0000" to "0001" as your enemy data said the Stork MT was 0001 but the player AC didn't turn into a Stork MT. What did I do wrong? How do I change the player AC to become an enemy that is in the mission or test? Hope you can translate this to be understandable.