Why 1422?
Start with 1500 - Average player.
It doesnt know what ''Artillery'' is or how to properly use it. 100pt penalty.
Bashes its head against porc. 200pt penalty.
Reclaims. +100pt
Aggressively expands. +100pt
Sort of raids. +10pt
Reacts to enemy composition (to a degree). +12
Total: 1422
Per cai add 100-200 elo to expected difficulty. Eg: 1800 player can take about 3 cai on a normal or small map.