The Greatest Day Attack Wizard
The Greatest Day module has an integrated combat resolution system to assist players in accounting for all possible attack and defence modifiers
that might apply in an individual combat including terrain, combat status, weather, time and unit statuses.
Use the Combat -> Info command to display a popup listing the current stats for this counter based on current conditions
Use the Combat -> Info command to initiate the Attack Wizard. The first stage of the Wizard is to display a Line of Sight (LOS)
thread that reports the range of the attack and highlights any blocking terrain crossed by the LOS. In this case, the LOS is crossing a total of 4 Crest
hexsides (highlighted in yellow) and a Hedgerow hex (highlighted in Red) before entering the final Town hex where the target is located.
In this case, the attack cannot take place because the LOS is not clear. The Attack Wizard LOS tool will highlight any blocking or potentially
blocking terrain, it is up to the players to determine if the LOS is actually blocked or not.
Note that Potentially blocking terrain (Raised roads/railroads, Bridges) must be checked to see whether the LOS line actually crosses the
road/rail/bridge graphic within the hex.
Click on a target hex containing at least one enemy unit to invoke the Attack Wizard Combat Resolution dialog. Click on any empty hex to
dismiss the Attack Wizard without initiating the attack.
The Attack Resolution dialog displays the attacking unit and the target unit, and any known modifiers. Checkboxes are available to select other
options that may apply to this combat. In this case, 'Target Moving FZ to FZ' and 'LOS crossed non-adj Ridge' have been clicked and the
appropriate modifiers have been included.
If there is more than one enemy unit in the target hex, use the < and > buttons below the target unit display to select the
unit you wish to attack.
Only modifiers appropriate to the mode of attack (Direct, Indirect or Opportunity) are displayed. Here is the same attack as a Direct Attack:
Company Bonus can either be selected manually after an external roll (check the checkbox), or you can click on the small die button to have
Vassal roll the bonus for you and select the checkbox automatically if the unit passes.
Use the Other modifier to add or subtract an arbitrary number from the role. Use this if you need to over-ride an auto-generated modifiers.
Finally, click on the Roll button to roll the die and report the results of the combat. Combat results are not automatically applied to units, they
must be done manually by the players.
Artillery units in an Artillery park are located offmap on the Divisional Scenario card, so it is not possible to draw an Attack Wizard LOS from
them to the main map. Instead, righ-click on the Artillery Park counter, select Attack, then select an Artillery unit from the submenu
that appears showing all Artillery Units currently within that Artillery Park. This will initiate a LOS from the Artillery Park counter. Click on the
target counter and proceed with the attack as normal.
Counter-battery fire is initiate by attacking from one Artillery Park directly against another. Choose the unit with the highest base defence value.
Any combat result affects all units in the target Artillery Park
Ships in an Assault Force are similar to Artillery Units, except they do reside on the main map, just a long way from the action. You can attack
with Ships in two ways. The first way is to right-click on the Ship counter and select the Attack and draw a LOS all the way from
the Assault Force box to the hex you wish to attack. The second way is to use the same method as for Artillery units in an Artillery park,
except to use the Assault Force marker. Right-click on the Attack Force marker, select Attack With, select a range, then select one
of the available ships. A LOS will appear starting at the Assault Force marker.
In both cases, the range is correctly calculated based on the distance from teh Assault Force marker plus the range to the Assault Force.
To attack a ship with a Coastal Battery, just select the Attack command on the Battery unit and drag the LOS all the way up to the
ship counter. No short cut! The range will be calculated correctly.
To initiate an attack by Beach Defences (Resistance nests, Obstacles, Sea State) on and Allied unit on a Beach hex, right-click on the unit and select
the Beach submenu, then select the type of attack. Attack types are only listed that match the type of unit (e.g. Sea State attack only for
DD Tanks, Obstacles attack only for Landing Craft) and only of that type of Beach Defence has a value greated than 0.
A simplified version of the Combat resolution dialog appears to handle the roll.
LC, Support units and other Allied units on a beach hex can use the Beach -> Attack Beach Defences to attack the Beach Defences. A simplified
combat resolution dialog will appear and the roll result will specify the kind of defences that may be reduced:
After Allied Air counters have been allocated and placed on enemy counters, right-click on an Air Power counter and select Attack to
initiate an Air Strike. If the axis unit is in, or adjacent to terrain with inherent Air Defence, then the option appears to roll a die to see if the
Air Strike can be forced to abort. Click the Roll button to resolve the attack.
German units with Air Defence capability and within 8 hexes of the Air Strike can attempt to force the Air Strike to abort by perfoming a
right-click Air Defence Attack on the unit (An Attack will work as well, but the range will be reported incorectly).
By default, the Attack Wizard operates in Roll mode where Vassal makes the roll and reports the results. Click on the small wheel
below the Roll button to change modes.
In Use mode, instead of Vassal rolling the die, you can enter the value of a die roll sourced from an external die roller. Select the die
roll from the drop-down menu and click Use to resolve the combat using that roll.
In Report mode, no die roll is used and the combat is not resolved. Instead, all of the details including terrain, fire type and modifiers are
reported in the Chat Window for manua resolution.