Extremely easy. Fixed force 1v1, Iron Age. I completed all 6 scenarios in 35 minutes. You always have 25-30 Greek Centurions; enemy usually has 100-400 troops, but never better than Heavy Cavalry -- no contest. In one, I had 300 kills with no losses. Varied objectives, very basic map & story, no extras. Play this one only to practice your heavy infantry formation control techniques, while you talk on the phone to a friend or otherwise occupy your mind.