Experimenting with all the weapons I could find, I found a good small set to work with for a cowboys and indians TDM or Seige. The problem is I can't find a good map. Most of the maps are slate edits or a random set of islands. The random sets of islands are close sometimes but have something that makes it not work for me.
I want a map that in one area has a big flat surface where I can build western buildings, maybe even a small western town. Then across a big (not huge) body of water is a hill with trees and patches of flat surfaces where I can build tents. This way skilled archers on the indian side have a height and cover advantage to make up for their limited range weapons. While the coyboy side has less cover and is more wide open to make up for their longer range weapons. Then which ever side decides to push out and attack has to take a series of boats they have to take across the water. Openning alot of chances for cowboys going across the water in a boat and a bunch of arrows flying out of the trees to and from random directions. Good fun.
If possible I'd also like the different sides to be big enough in total for battles with larger groups of people. If a bunch of cowboys make it across the water then it turns into a big battle in the trees. If the indians make it into the town, it can turn into a big battle between the buildings in the town. If possible, capable of 8 on 8 battles in the 2 areas by themselves. And the body of water should be big enough for it to take a decent amount of time for a rowboat to make it across. 10 seconds if you wanna take a guess. I hope that gives a good idea of the sizes to make everything.
The weapons consist of the default bow and spear, a revolver that reloads after 6 shots, and a double barrel shotgun that has to reload each single shot. Which I believe is pretty balanced given the strengths and limitations of the weapons. The vehicles are the rowboat, horse, and covered wagon.