Horse archers vs Phalanx Troops

they are practically impossible to kill when fireing from the front. you have to get them on the right flank or rear the have an effect

Historically i call this a plausible, because the the missiles were highly likely to hit the sariccas in 4th or 5th row and accually lose all stopping power and fall to the ground

Gameplay vise: it the phalanx were more vaunable, it would be extremely hard to fight ANY horse archer faction....