Well P1 is NORMALLY what a human player
should be playing as but every once in awhile scenario designers "get creative" and throw a wrench in the works.
*IF* a scenario is designed and it turns out the P2 side is the better one to play from then this can happen but (NOTE TO SCENARIO DESIGNERS) P2 should not really be the default human side.
That said the scenario text
does say right at the start "This is a PBEM scenario - if playing against the AI, play the Turkish side."
......but now we know it's a good beginner scenario from the Greek side