the french colours which you saw were the ones from the revolution, even it was probably used in the napoleonic wars although the main flag was blue white red with the coat of arms on the middle
"British Empire has won The Battle of Frischermont" "French Empire has won The Battle of Wooden Crest" "Prussia has won Battle of Riverside Encampment" "Nassau has won Battle of Frischermont" "Russian Empire has won Battle of La Rothiere" "Austrian Empire has won Battle of La Rothiere Fields" "Bavaria has won Battle of Unterlaichling" "Duchy of Warsaw has won Battle of Spanish Farmstead" "Brunswick Ducal Corps has won Battle of Halbersdadt" "Westphalia has won Battle of Elbe Shore"
1:57 Thanks for trying but non of those flags are not flag of duchy od Warsaw First one is flag of kingdom od Poland that was controled by russia after Napoleonic wars , and second one was Been used by first time in November uprising when poles rebeled aginist russia on 1830
J and demoman is UK V is french N is Prussia and Brunswick Wubbox is nassau pomni is russian empire ragatha is austrian empire jax is Bavaria kingdom Cyn is polish Rocky rickaby is Westphalia msm mammott is spain