Guys, I owe you apologies - Cavalry wasn't balanced and infantry quality difference was too big for French number to make up... however 30 French guns vs 18 Allied should make difference if properly used... it takes experience players though - Gonzo is very experienced with use of Cavalry both in vanilla and KS mod... so having better Cav the result was easy to predict...
see the OOBs with average exp. below:
French OOB:
'1er Corps d''Armée': 'Lieutenant-général Jean-Baptiste Drouet Comte D''Erlon' (12601 Inf. 560 Cav. 30 Guns))
1ère Division: Maréchal de Camp Baron Joachim Quiot de Passage (4664 Inf. 560 Cav. 14 Guns)
Brigade Husson: Maréchal de Camp Baron Pierre Antoine Husson (2554 Inf. 5 battalions Avg. Exp. 5.7)
Brigade Quiot: Colonel Claude Charlet (2110 Inf. 4 battalions Avg. Exp. 5.0)
Brigade Huber: Maréchal de Camp Baron Pierre Antoine François Huber (560 Cav. 4 squadrons Avg.Exp. 4.
2e Co / 1er Régiment d’Artillerie à cheval: Capitaine Apollinaire Bourgeois (6 Guns Avg. Exp. 6.0)
'20e Co / 6e Régiment d''Artillerie a Pied': Capitaine Joseph Guillaume Mathurin Hamelin (8 Guns Avg. Exp. 6.0)
2ème Division: Lieutenant-général comte François Xavier Donzelot (7937 Inf. 16 Guns)
Brigade Schmitz: Maréchal de Camp baron Nicolas Schmitz (2852 Inf. 5 battalions Avg. Exp. 5.4)
Brigade Aulard: Maréchal de Camp baron Pierre Aulard (2200 Inf. 4 battalions Avg. Exp. 5.5)
Brigade Hulot: Colonel Paul Hippolyte Alexandre Baume (2885 Inf. 5 battalions Avg. Exp. 5.4)
'10e Co / 6e Régiment d''Artillerie a Pied': Capitaine Antoine Coutin (8 Guns Avg. Exp. 6.0)
'11e Co / 6e Régiment d''Artillerie a Pied': Capitaine Pierre Charlet (8 Guns Avg. Exp. 6.0)
Allied OOB:
I Corps: Z.K.H. Prins Guillaume Charles Frédéric van Oranje Nassau (10258 Inf. 564 Cav. 18 Guns))
3rd British Infantry Division: Major-General Count Sir Karl von Alten (5462 Inf. 564 Cav. 6 Guns)
2nd KGL Brigade: Oberst Christian Friedrich Wilhelm von Ompteda (2147 Inf. 4 battalions Avg. Exp. 6.7)
1. Hannover Brigade: Generalmajor Friedrich Otto Gotthard Graf von Kielmansegg (3315 Inf. 6 battalions Avg. Exp. 5.2)
'2st Regiment of Hussars King''s German Legion': Oberstleutnant August von Linsingen (564 Cav. 4 squadrons Avg.Exp. 6.0)
1st KGL Foot Battery: Kapitain Andreas Cleeves (6 Guns Avg. Exp. 6.0)
5th British Infantry Division: Lieutenant General Sir Thomas Picton (4796 Inf. 12 Guns)
8th Brigade: Major General Sir James Kempt (2473 Inf. 4 battalions Avg. Exp. 6.7)
9th Brigade: Major General Sir Dennis Pack (2323 Inf. 4 battalions Avg. Exp. 6.5)
'Rogers''s Company RFA': Captain Thomas Rogers (6 Guns Avg. Exp. 5.0)
Braun Fussbatterie: Kapitain Wilhelm Braun (6 Guns Avg. Exp. 5.0)