But we know that they never enjoyed such extensive equipement their opponents had. They had no helmet ,Their spears were not long enough(And wasn't of good quality) ,Their armor usually was not sufficient to cover all of the body ,In most cases only carried a wicker shield and at last I suppose at the time of Alexander invasion ,their training (just like their state) was in decline (?!)


Thureopherontes Toxotai (Bosphoran Heavy Archers)

although it has short sword instead of a spear as secondary weapon it is the afaik only archer unit ingame which comes close to your suggestion.