So I've tried this map as Mali a few times and I just cannot keep up with Ghengis. The closest I got was a late game loss (Ghengis won the space race). As far as I can tell this map is as close to impossible to beat as you can get. So in conclusion Emperor difficulty and above are just forms of sadomasochism that require expert exploitation and a relatively good map. I mean, spending 100+ hours of being punished like this can't be called 'fun'.