I did this in my game
first you have to go into the folder (the back up one that auto-corrects) and change the build times yourself. This does not effect the AI at all as they only recruit one unit at a time. for the buildings just use the
process_cq Arpi as this cheat still works.
I dont recommend changing upkeep or recruitment costs though...But that is just because the team has put in alot of effort in those and they are pretty good in my opinion