You probably won't find many, but good luck searching in Steam Workshop.
Master AI requires some additional scripting which many map makers aren't aware off. You can manually do that by importing their work and adding bunch of scripts. Unfortunately, importing other people's work results into half-broken scripting so you'll have to manually correct stuff, which can be problematic if map is complex. Your best bet is to ask the author do that and hope he is skilled enough to do the change.