Lets say that you have A regiment of Average Drilled Cuirassiers assaulting an Average Veteran Infantry regiment head on (small units).
The infantry is in extented line and chooses to stand and fire
How many dice rolls will the KGL shoot on the cuirassiers and what are the changes that the cuirassiers will make it into contact?
What are the odds then?
Lots of variables to this.
The KGL will first need to take the CT for being charged, only 2 dice since they are in extended line. About a 55% chance of passing.
If the KGL pass the CT:
- If the Cuirassiers are charging the centre of the line, the KGL shoot 8 dice needing 4+ to hit, so the Cuirassiers will most likely be repulsed wavering.
- if the Cuirassiers are charging one side of the line, starting the charge outside the frontal arc of the KGL, the KGL will get 4 dice needing 5+ to hit. The Cuirassiers will most likely then need to CMT to charge home (55% chance of passing, 75% chance if general leading the unit)
- in combat the Cuirassiers will probably do 4 hits to the infantry and waver them, becoming disordered themselves. The infantry will retire d6+2, facing away if they roll 2+ on the dice. The Curassiers will pursue d6+2 and likely destroy the retiring foot if they catch them.
Summary, if Curassiers charge the centre of the line and the KGL pass their CT, the infantry will most likely win. If the Cuirassiers charge from an angle, and pass a CMT to close, the Cuirassiers likely win.
If the KGL fail the CT:
- If the Cuirassiers are charging the centre of the line, the KGL shoot 6 dice needing 4+ to hit, so the Cuirassiers will most likely be repulsed disordered.
- if the Cuirassiers are charging one side of the line, starting the charge outside the frontal arc of the KGL, the KGL will get 3 dice needing 5+ to hit. The Cuirassiers will most likely then need to CMT to charge home (55% chance of passing, 75% chance if general leading the unit)
- in combat the Cuirassiers will probably do 4 hits to the infantry and destroy them, becoming disordered themselves.
Summary, if Curassiers charge the centre of the line and the KGL fail their CT, the infantry will most likely win. If they charge from an angle, and CMT to close, the Cuirassiers are highly likely to win.
So cavalry should always look to start an assault from outside the frontal arc of the infantry. The infantry take a risk in not forming square. They are likely to be destroyed If they are unlucky. If things go badly for the Cuirassiers, they will end up repulsed to 3MU, and probably wavering. The cavalry will have a chance to rally at the end of the phase. If the infantry are disordered at the start of the charge, the odds change massively and the infantry will very likely be destroyed if theu elect to not form square. The odds also change in a big way if the assaulting cavalry are superior or a large unit.
As a game mechanism, I think this works really well. There are things the cavalry commander can do to maximise his chances of success (ie come in at an angle, and have a general attached). It is a difficult choice for the infantry commander whether to form square or not - he can play it safe and form square, or go for the risk/reward of staying in line. Much will depend on whether the infantry pass their CT. The player must of course make the decision of square or line before he takes the CT.
In many wargames rules Cavalry are the panzers of Napoleonics, leading the attack against infantry. If not successful, infantry pile in against the enemy now in square and take them out. Historically this happened only rarely as cavalry did not tend to lead assaults. If not engaging enemy mounted, they supported infantry assaults, were kept in reserve or used if there was nothing else available.
In FoGN games a defending infantry player has a tactical option to avoid being combined arms by not forming square. The net result is that the games do not often start off with a cavalry charge against the enemy infantry line, and cavalry commanders are usually nervous about throwing their mounted troops forntally at steady infantry - a good overall effect in my view.
Cheers
Brett