Zerver has created additional flavour units for Canada, and strategyonly has packed them for use with my [BtS] Canada Mod.
Download the Canada Mod, then download this pack.
Unzip this file to Beyond the Sword\Mods
Do not unzip the file to \Mods\Canada. The zip is setup to find the path from the Mods directory. When asked about overwriting existing files, select 'yes'.
Much thanks to Zerver and strategyonly for their great work!