The terrain in Figure 1 is the extreme right flank of the French advance on Quatre Bras.  There are no other French units to the right of these units.  This is the 2:45 PM game turn.and the French see the approach of a British Brigade just north of the Etang Materne.  The French skirmisher outlined in white is disordered.  The cavalry squadrons at the far right are 125 and 50 SP each.  The skirmishers in and around the Bois Charris chateaux are about 50 - 100 SP each.  One of the Allied infantry battalions on the pike just north of the lake is the 95th Rifles.

The French have made their move, electing to delay Allied movement with cavalry and have destroyed the battery in the woods by a charge that cost 3 SP of cavalry for a 3 SP horse artillery unit.

Unfortunately for the French, all the cavalry were shot down during the Allied Offensive Fire Phase.  The probability of this given the available units is 100 %. 

How were the two cavalry squadrons destroyed?  In Figure 4, the location of Allied units in Figure 2 available to fire at the lower French squadron is shown; all the units had LOS to the upper French squadron.  The two stacks of the units behind the others are the 95th Rifles, which get a +1 modifer due to their quality 6 level.   Two of three stacks adjacent to the squadrons are 500-600 SP infantry battalions in line with 50-75 SP skirmishers stacked with them.  The other stack is an infantry unit in column with a skirmisher stacked with it.  Calculating the odds of attaining four or more 25 SP hits out of the available shots with these units gives 100 % (i.e., always).