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You need the NT .exe that's provided with the zipped NT IRO folder for sources to give the proper amount. I forgot to include them with the latest IRO upload so I'll upload these now. Once they're up, drop them into your FF7 folder (make sure to rename the old ones as 'ff7 default' or something so you can revert back). I think 7H runs through the ff7.exe rather than the ff7_en.exe which is for steam's launcher.
As for field models, I'll upload those.
You can also update the IRO without issues during a run. The files altered weren't related to the game's savemap variables. Same goes with the .exe.
The fort condor guy spawn points are:
-) Junon, for first and second battle (the one before getting into the water and the one just after Cloud gets into the water and then leaves again).
-) I think for the buggy acquired one there isn't a spawn because typically players would head back to Junon area to talk to the sleeping man + acquire White Wind enemy skill.
-) He appears next in Gongaga I believe on one of the paths outside town.
-) Cosmo Canyon, he appears when Bugenhagen opens the door to the Cave of the Gi.
-) Rocket Town, he can be found in Cid's house sitting in the car.
-) No spawns because Bronco has been acquired, which can reach Fort Condor via the shallow water paths.
-) Final spawn is in Forgotten City, on the lower level of the house the party can sleep in.
Edit
https://www.mediafire.com/file/vpmu98jp1yh6wn9/FF7_NT_IRO_12th_February_2019.zip/fileThat's what the upload should have been. It contains the IRO and all the documentation, .exe files, etc. I forgot that I used to pack the IRO in this folder. Sorry about that.