(!957) Ai rework

GR.org Link

Link to GameReplays if this merge requests needs discussion (also add "discussion label")

 

Description

• AI Reworked: --- should now be significantly tougher to play against, especially on Hard and Brutal; --- Aggressiveness increased; --- will now build significantly more Resource Buildings; --- will now build additional, lone Fortresses around the map; --- will now prioritise upgrading Fortress with armour in early-game; --- will now recruit Drakes and Eagles earlier and more frequently; --- Increased overall bias for Pikemen and Elite Archers --- fixed an issue where the AI would hold back attacks for extended periods of time;
• Easy AI difficulty increased slighty.
• Fixed an issue where the AI would sometimes not return the ring to Fortress and would instead hang about the Fortress going back and forth.

TO DO:

• Add Fire Arrows upgrade priority for Isengard  

Checklist

I have:

• Tagged my change with the ;,; comment block.
• Ensured that this merge request changes exactly one thing.
• Attached the proper labels to this merge request.
• Added the Merge Request number in the title. e.g. (!42)
• Added a devlog entry for this change.
• Tested my code.