IL2 Sturmovik/Pacific Fighters (Score 1)

The AI in this WW2 Combat Flight Sim is very good, it simultaneously controls many ground, sea and air objects which autonomously attempt to fulfill their objectives. Its good enough to make the game play very immersive and to support reasonably realistic historic scenarios. You can set the individual skill levels of enemy and allied objects. It's compelling enough that I fly with an online squadron [ www.tangmerepilots.co.uk ]. The AI is good enough that even our best players are still very regularly shot down, it's easier to play against human players of average skills.