1 v 2 or 1 v 1 AI
AI behaves well during age 2. It attacks all the time and keeps up the pressure. Around the time players hit castle age AI gets really passive and just keeps hanging out near their main TC. If playing 1v2 the dont really defend each other. AI starts attacks but before hitting my base they just decide to head back. If they have siege that makes them so slow that they are easily killed without fight. I think there is some bug with how AI counts army values and always thinks they are underpowered from castle age forward
AI also does not use siege properly. They might attack a castle once or twice with trebuchet but they always stop attacking after that.