@Deliverator
What are your thoughts about the new Australia civ?
I have ideas for two new units for Australia, both involving the Australian Aborigines: a boomerang thrower (replacing the slinger, but has two range instead) and a scout replacement that can enter shallow water and ignore rivers from the get-go.
This would help balance Australia a little in the start, and because unmodded Australia doesn't have any Aborigine representation.
If you were going to give Australia an indigenous themed ancient ranged unit, it would be better to give something that was actually used for combat.
Personally I'd probably like to see a tracker unit, with extra sight, around the Musketman mark, and which upgrades to keep the extra sight.