From the Gamedata/Dispos folder, I deleted A006.bin, and A006E.bin
From the Scripts folder, I deleted A006.cmb and A006_Terrain.cmb
From the Scripts/bev folder, I deleted A006_ED_マイキャッスル.cmb, A006_OP2A.cmb, A006_OP2A_00.cmb, and A006_OP2A_05.cmb
I've randomized a physical copy of ENG Conquest...