diff --git a/config/skills.json b/config/skills.json
index 57e208159..46c867ffb 100644
--- a/config/skills.json
+++ b/config/skills.json
@@ -666,5 +666,81 @@
                 }
             ]
         }
+    },
+    "tactics" : {
+        "basic" : {
+            "description" : "",
+            "effects" : [
+                {
+                    "subtype" : "skill.tactics",
+                    "type" : "SECONDARY_SKILL_PREMY",
+                    "val" : 3,
+                    "valueType" : "BASE_NUMBER"
+                }
+            ]
+        },
+        "advanced" : {
+            "description" : "",
+            "effects" : [
+                {
+                    "subtype" : "skill.tactics",
+                    "type" : "SECONDARY_SKILL_PREMY",
+                    "val" : 5,
+                    "valueType" : "BASE_NUMBER"
+                }
+            ]
+        },
+        "expert" : {
+            "description" : "",
+            "effects" : [
+                {
+                    "subtype" : "skill.tactics",
+                    "type" : "SECONDARY_SKILL_PREMY",
+                    "val" : 7,
+                    "valueType" : "BASE_NUMBER"
+                }
+            ]
+        }
+    },
+    "artillery" : {
+        "basic" : {
+            "description" : "",
+            "effects" : [
+                {
+                    "subtype" : "skill.artillery",
+                    "type" : "SECONDARY_SKILL_PREMY",
+                    "val" : 50,
+                    "valueType" : "BASE_NUMBER"
+                }
+            ]
+        },
+        "advanced" : {
+            "description" : "",
+            "effects" : [
+                {
+                    "subtype" : "skill.artillery",
+                    "type" : "SECONDARY_SKILL_PREMY",
+                    "val" : 75,
+                    "valueType" : "BASE_NUMBER"
+                },
+                {
+                    "subtype" : "skill.artillery",
+                    "type" : "SECONDARY_SKILL_VAL2",
+                    "val" : 1,
+                    "valueType" : "BASE_NUMBER"
+                }
+            ]
+        },
+        "expert" : {
+            "description" : "",
+            "effects" : [
+                {
+                    "subtype" : "skill.artillery",
+                    "type" : "SECONDARY_SKILL_PREMY",
+                    "val" : 100,
+                    "valueType" : "BASE_NUMBER"
+                }
+            ]
+        }
     }
 }
diff --git a/lib/CSkillHandler.cpp b/lib/CSkillHandler.cpp
index 236a033a9..412aa2cc1 100644
--- a/lib/CSkillHandler.cpp
+++ b/lib/CSkillHandler.cpp
@@ -256,6 +256,10 @@ std::vector<std::shared_ptr<Bonus>> CSkillHandler::defaultBonus(SecondarySkill s
 		addBonus(1 + level); break;
 	case SecondarySkill::TACTICS:
 		addBonus(1 + 2 * level); break;
+	case SecondarySkill::ARTILLERY:
+		addBonus(25 + 25 * level); break;
+		if(level > 1) // extra attack
+			addBonus(1, Bonus::SECONDARY_SKILL_VAL2);
 	case SecondarySkill::LEARNING:
 		addBonus(5 * level); break;
 	case SecondarySkill::OFFENCE:
diff --git a/server/CGameHandler.cpp b/server/CGameHandler.cpp
index 760990510..6071bc092 100644
--- a/server/CGameHandler.cpp
+++ b/server/CGameHandler.cpp
@@ -880,9 +880,8 @@ void CGameHandler::prepareAttack(BattleAttack &bat, const CStack *att, const CSt
 
 	if (att->getCreature()->idNumber == CreatureID::BALLISTA)
 	{
-		static const int artilleryLvlToChance[] = {0, 50, 75, 100};
 		const CGHeroInstance * owner = gs->curB->getHero(att->owner);
-		int chance = artilleryLvlToChance[owner->getSecSkillLevel(SecondarySkill::ARTILLERY)];
+		int chance = owner->valOfBonuses(Bonus::SECONDARY_SKILL_PREMY, SecondarySkill::ARTILLERY);
 		if (chance > getRandomGenerator().nextInt(99))
 		{
 			bat.flags |= BattleAttack::BALLISTA_DOUBLE_DMG;
@@ -4007,19 +4006,18 @@ bool CGameHandler::makeBattleAction(BattleAction &ba)
 				handleAfterAttackCasting(bat);
 			}
 
-			//second shot for ballista, only if hero has advanced artillery
-
-			const CGHeroInstance * attackingHero = gs->curB->battleGetFightingHero(ba.side);
-
-			if(destinationStack->alive()
-				&& (stack->getCreature()->idNumber == CreatureID::BALLISTA)
-				&& (attackingHero->getSecSkillLevel(SecondarySkill::ARTILLERY) >= SecSkillLevel::ADVANCED)
-			)
+			//extra shot(s) for ballista, based on artillery skill
+			if(stack->getCreature()->idNumber == CreatureID::BALLISTA)
 			{
-				BattleAttack bat2;
-				bat2.flags |= BattleAttack::SHOT;
-				prepareAttack(bat2, stack, destinationStack, 0, ba.destinationTile);
-				sendAndApply(&bat2);
+				const CGHeroInstance * attackingHero = gs->curB->battleGetFightingHero(ba.side);
+				int ballistaBonusAttacks = attackingHero->valOfBonuses(Bonus::SECONDARY_SKILL_VAL2, SecondarySkill::ARTILLERY);
+				while(destinationStack->alive() && ballistaBonusAttacks-- > 0)
+				{
+					BattleAttack bat2;
+					bat2.flags |= BattleAttack::SHOT;
+					prepareAttack(bat2, stack, destinationStack, 0, ba.destinationTile);
+					sendAndApply(&bat2);
+				}
 			}
 			//allow more than one additional attack