Sioux also have a very strong axe rider semi ff. here is the general BO, and if u want u can improvise in 5 bow riders before aging. 15/16 vill age up, 400 wood. once transitioning put 5-6 vills on coin. from wood build a stable, and queue up as many axes as u can, should be 5 by the time its done. first colonial ship is 4 axes. If u want, then u queue up a bow rider after the axes and u should be able to get 5 by the time its done. the second the first axes come in u should start raiding with ur warcheif and those axes. if ur opponent proves unraidable, then use them to get some OP treasures. In general after that ur next ship is 700 coin to age up, possibly 4 vills. usually this works pretty well, but once u get to fortress u have several options. btw, constant vill production is expected throughout this strat. and sometimes in fortress u can get away with making some tashunke and doing so uber OP raids with stealth cav that has an area attack. Once u are in fortress and have some wakina/rr u should hit them before they have the chance to age sine almost no civ can compete with siouxs fortress army if theyre in age 2.
The more costeffective army can win vs a more expensive (better unit) because they can just keep throwing them at the other player.