So, if you plan to use PERRY plastic figures, you can build (at least) two units:
- King's American regiment (4th American regiment) in red coat with green facings
- British Legion (5th American regiment) in blue coat with red facings
PERRY also produce metal figures for the "Volunteers of ireland" and a regiment of freed slaves which fought on the british side.
No idea what the flags of these regiments looked like, alas
