Since ranged attack killing does not result in the attacker moving onto the tile occupied by the defender in many cases it would be best, given the option, to have a ranged unit perform the final attack on an enemy so that the defensive line is not forced to extend into the possible middle of the enemy line. Given the option of using a ranged or melee unit you would still have the option post-combat to move the melee unit into the gap. The no-counter aspect of ranged makes this even more desirable since the killing blow would not cause any damage to the attacker.
The downside is that you may need three attacks instead of two to kill a single unit assuming that you generally have better melee damage capability compared to ranged attack capabilities.
I Welcome and will myself consider the effects of this on combat formation when the time presents itself.
Note: Keep in mind you cannot capture a city now using just archers but must bring alone some form of melee unit. Or, more importantly, if you lose your last melee unit attacking a city it will not matter how many ranged units you have - other than to maintain the siege (while taking full damage from the city) while reinforcements arrive.
The downside is that you may need three attacks instead of two to kill a single unit assuming that you generally have better melee damage capability compared to ranged attack capabilities.
I Welcome and will myself consider the effects of this on combat formation when the time presents itself.
Note: Keep in mind you cannot capture a city now using just archers but must bring alone some form of melee unit. Or, more importantly, if you lose your last melee unit attacking a city it will not matter how many ranged units you have - other than to maintain the siege (while taking full damage from the city) while reinforcements arrive.