Yeah I use this though I only use the AI module which can be loaded separately.
HOWEVER. Just keep in mind that the more complex AI used in this mod will put a hurting on your CPU processing power. I have about a $3200 gaming rig and with the native AI, I can run 1500 man battles without a single hitch in frame rate. With the "Realistic Combat Mods" AI installed, I get tons of frame drops and lag even with my my battle size dropped back to to 1000. That is the price you pay for a more capable AI and probably the reason the Native AI is so terrible.
Also not only is the combat AI dumb, so is the campaign AI. Still dumb as ever.