Battle Ground Rules Modifications

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• Determine firing weapon type and range class to target. Range class includes a base to hit number.
• Apply appropriate modifiers to the base to-hit number and roll 1d20. Result less than modified to-hit number scores a hit. Die roll result greater than to-hit number is a miss. Natural 20 is always a jam/miss.
• If a hit is scored, roll 1d20 on hit location table.
• If location table calls for hull, turret or engine hit, compare weapon penetration (modified for range from range table) to armor value from that location.
• If penetration is equal to or greater than armor, roll again on penetration damage table and apply results. If penetration is less than armor, roll again on non-penetration damage table and apply results.

AT Hit/(Penetration Attentuation %)

• For "special" hits, 50mm+ AP rounds automatically penetrate: roll on penetration damage table. AP < 50mm and all HE rounds roll on penetration damage table with a +2 modifier to die roll.
• For "hull" or "turret" hits, resolve for penetration then roll on appropriate damage table
• For "crew" hits, resolve for penetration. If penetrated, follow crew selection for hits on 'B' column of damage table; for non-penetration resolve hit on 'F' column.
  Only modifiers: <50mm: +3; >100mm & any HEAT: -2
• Crew selection as follows:
  • hit on
    • front: roll 1d6: 1-3 driver, 4-6 ass't driver/hull gunner
    • side: hull: hit on left-driver; right-ass't driver; turret: hit on left-loader; right-gunner
    • rear: roll 1d6: 1-3 loader; 4-5 commander; 6 gunner
    • top: roll 1d6: turret: 1-2 loader; 3-4 commander; 5-6 gunner; hull: 1-3 driver; 4-6 ass't driver
• For "engine" hit: Resolve for penetration. If penetrated, vehicle immobilized; and also on fire if another 1d20 roll is a 5 or less. Subtract 8 to American die roll (gas engines). If no penetration engine out (immobilized) for 1d6 turns. For "‘gun" hit: Main gun is knocked out for remainder of game.
• For "'gun" hit: Main gun is knocked out for remainder of game.
• All Penetrations, crew, commander, gun and immobilized results require morale roll; failure: crew bails out. Immobilized crews must roll morale every turn they remain in vehicle.

1. Determine weapon type and range class to target.
2. Roll 1d20 and apply all appropriate modifiers.
   (When firing a group with mixed weapons, apply modifiers for the type in the majority.)
3. Compare result to hit table for number of hits.
4. Range table gives info on appropriate damage table column per weapon type and range.
5. Apply hits as per standard BG rules.

• under 30mm column G
• 30mm+, column D.

1. Units require one action to assault a position or another unit/figure. Attackers must close to within one inch of target and still have an action remaining. Only attacking stands within one inch of target may participate in a given assault. Prior to entering an assault each figure must pass a morale roll. (Failure has no penalty except that unit cannot participate.
2. Determine target type and roll 1d20.
3. Apply applicable modifiers. Attackers may elect to withhold some modifiers, e.g. not use grenades, satchel charges, or mines in order to save them for later; however, if the modifier is taken all participating figures with that item available expend one.
4. Compare result with column below target and roll for damage as necessary on damage table. For multi-stand targets, such as the occupants of a bunker, apply hits randomly.
5. If the target figures have an unused action in this turn (including reaction fire markers), surviving figures may immediately counter-assault but they must also pass an extra morale roll.

• Opportunity fire: same rules as in BG.
  
  
• Ambush: Similar to opportunity fire but a unit can be designated for ambush fire when an enemy unit is already in line of sight IF:
  • The ambushing unit has never fired or been sighted in its current position and no other friendly unit has fired from within six inches of it while currently in an enemy line of sight.
  • The unit being ambushed must perform a complete action within the ambushing unit's line of sight, and the target must come within effective range of the ambushing weapon prior to executing fire.
  • Otherwise rules of ambush in BG apply.
  
  
• Pinning fire: Pinning fire is more generic than in BG. Any weapon type may conduct pinning fire with a hit modifier based on rate of fire (rof). Pinning fire rules are otherwise as per BG.

• Special note: Plunging fire is not properly described in BG. In practice, plunging fire was small arms fire (generally automatic weapons) sited to fire down upon a target. This decreases the value of most cover, and in the case of vehicles it exposes their especially vulnerable aspect. To reflect this there is a -3 cover modifier applied to fire from units in a position to deliver plunging fire.
  
  
• Reaction fire: This is NEW. Reaction fire is not marked during special orders. A unit is marked for reaction fireonly after its initiative card is drawn. The reaction fire status ends when the initiative cards are re-shuffled.
  
  
• A unit that performs no more than one action in a turn may be marked as reaction fire for the balance of that turn. Reaction fire means the unit may fire later in the turn IF
  • An enemy unit opens fire within its front arc. (The unit may make a special sighting roll in this situation, if necessary.)
  OR
  • A unit may execute reaction fire if an enemy enters point-blank range during that turn.
  
  Reaction fire follows the effects of the triggering unit's fire, if that fire is the triggering event. (i.e. A target cannot trigger reaction fire by moving into point blank range and then fire first. If it has an action available to do so and it survives the reaction fire, it may return fire in such an instance.) No member of a crewed weapon may have performed more than one action if the weapon is to perform reaction fire. If a figure executing reaction fire moved in its first action, the reaction fire takes the appropriate modifier for moving in the preceding action. A figure marked reaction fire cannot perform any other action except to fire its primary weapons. A figure/weapon can be marked for reaction fire without executing any other action first, but it still may only fire once. Figures may not assault in reaction fire. Note that small arms reaction fire carries a hit modifier

1. Communication and Availability are condensed to a single roll instead of two. The scenario rules assign one number that is compared to a 1d20 roll, just as is done in BG. Commanders calling fire from on-board mortars they control get a -5 to the contact/availability roll, as do designated forward observers.
2. Mortars sighting for their own fire and any fire directed by designated forward observers roll 1d10 and 1d6 for deviation at all times. They never have to roll 1d8/2d6.
3. For impact and damage, the player calling the fire designates line or point fire per BG rules. The fire is treated as loose pattern if it drifts more than four inches and as tight pattern if it drifts four inches or less.