Anyone know why an opponent would get an error?

[Warhorse]

Am pretty sure they were using the Pacific War version of the mod I was doing for a little while because of the dates. Switched back to AOTR version because one can change the dates easily in notepad when designing a scenario.

We tried zipping too, then on a whim I threw the bte file in my PacWar version and it opened! Trying to instruct the fellow on how to get a clean copy of the mod going, he threw it in stock AOTR and opened it, but no graphics, a start, no graphics because the database/graphics have expanded exponentially since the vanilla version!