I don’t want to revive that dead post, but I will back this up - Chanskopa was a sport that spread across the entire continent. We used similar tactics to use fire to herd bison around the prairie with flaming balls of dung thrown from chanskopa sticks, iirc.
“Chanskopa” is the Lakota word for Lacrosse. Using this instead of the completely ahistorical “captured mortar” would be a much cooler and more thematic method of giving the Lakota + Hauds siege units.
This backs up my argument that the Lakota + Hauds should be their own region, separate from the Aztecs + Incans. This is a shared unit that both civs could use that would have no place in the two southern civs.
The Lakota, rather than the light cannon, could alter the Marauders card to give Tashunke Prowlers the ability to use this siege attack from horseback, giving them an interesting niche as a cavalry siege-trooper.