@Perzival12
I made some changes to the Petra bot and committed it to the A28 code. Perhaps you can check it out there. Aside from that, there already exist some harder versions of AI bots around the forum, please have a go at digging around. Some may be outdated so require porting forward.
For the easiest level of AI, it would be a good idea to add back P3 and all the advanced units + structures, but really decrease the aggression level of the bot. What kills the human noob is not the late game units but the frequent early aggression.
On a separate note, let me know how well the AI bots perform with Hyrule Conquest