How do I make a mod for 1.2

[uanime5]

I recently upgraded to the 1.2 patch and was wondering how do I change one of the mods I made so that it will run using this patch (at the moment it just crashes because of an unspecified error).

[alpaca]

Some file layouts changed. Cross-check your files and the vanilla files for any differences.

[uanime5]

I found that by adding my units to the 1.2 verion of the battle_model file solved this problem (I responded so that anyone else with the same problem could fix it).