diff --git a/src/Episode3/DataIndex.cc b/src/Episode3/DataIndex.cc
index 04eab1e7..3cae382a 100644
--- a/src/Episode3/DataIndex.cc
+++ b/src/Episode3/DataIndex.cc
@@ -21,6 +21,16 @@ Location::Location(uint8_t x, uint8_t y) : Location(x, y, Direction::RIGHT) { }
 Location::Location(uint8_t x, uint8_t y, Direction direction)
   : x(x), y(y), direction(direction), unused(0) { }
 
+bool Location::operator==(const Location& other) const {
+  return (this->x == other.x) &&
+         (this->y == other.y) &&
+         (this->direction == other.direction) &&
+         (this->unused == other.unused);
+}
+bool Location::operator!=(const Location& other) const {
+  return !this->operator==(other);
+}
+
 void Location::clear() {
   this->x = 0;
   this->y = 0;
@@ -873,6 +883,24 @@ StateFlags::StateFlags() {
   this->clear();
 }
 
+bool StateFlags::operator==(const StateFlags& other) const {
+  return (this->turn_num == other.turn_num) &&
+         (this->battle_phase == other.battle_phase) &&
+         (this->current_team_turn1 == other.current_team_turn1) &&
+         (this->current_team_turn2 == other.current_team_turn2) &&
+         (this->action_subphase == other.action_subphase) &&
+         (this->setup_phase == other.setup_phase) &&
+         (this->registration_phase == other.registration_phase) &&
+         (this->team_exp == other.team_exp) &&
+         (this->team_dice_boost == other.team_dice_boost) &&
+         (this->first_team_turn == other.first_team_turn) &&
+         (this->tournament_flag == other.tournament_flag) &&
+         (this->client_sc_card_types == other.client_sc_card_types);
+}
+bool StateFlags::operator!=(const StateFlags& other) const {
+  return !this->operator==(other);
+}
+
 void StateFlags::clear() {
   this->turn_num = 0;
   this->battle_phase = BattlePhase::INVALID_00;
diff --git a/src/Episode3/DataIndex.hh b/src/Episode3/DataIndex.hh
index 5a52537c..da2134da 100644
--- a/src/Episode3/DataIndex.hh
+++ b/src/Episode3/DataIndex.hh
@@ -416,8 +416,8 @@ struct Location {
   Location();
   Location(uint8_t x, uint8_t y);
   Location(uint8_t x, uint8_t y, Direction direction);
-  bool operator==(const Location& other) const = default;
-  bool operator!=(const Location& other) const = default;
+  bool operator==(const Location& other) const;
+  bool operator!=(const Location& other) const;
 
   void clear();
   void clear_FF();
@@ -613,8 +613,8 @@ struct Rules {
   parray<uint8_t, 3> unused;
 
   Rules();
-  bool operator==(const Rules& other) const = default;
-  bool operator!=(const Rules& other) const = default;
+  bool operator==(const Rules& other) const;
+  bool operator!=(const Rules& other) const;
   void clear();
 
   bool check_invalid_fields() const;
@@ -638,8 +638,8 @@ struct StateFlags {
   parray<CardType, 4> client_sc_card_types;
 
   StateFlags();
-  bool operator==(const StateFlags& other) const = default;
-  bool operator!=(const StateFlags& other) const = default;
+  bool operator==(const StateFlags& other) const;
+  bool operator!=(const StateFlags& other) const;
   void clear();
   void clear_FF();
 } __attribute__((packed));
diff --git a/src/Episode3/PlayerStateSubordinates.cc b/src/Episode3/PlayerStateSubordinates.cc
index 45d867cc..0b16c606 100644
--- a/src/Episode3/PlayerStateSubordinates.cc
+++ b/src/Episode3/PlayerStateSubordinates.cc
@@ -12,6 +12,25 @@ Condition::Condition() {
   this->clear();
 }
 
+bool Condition::operator==(const Condition& other) const {
+  return (this->type == other.type) &&
+         (this->remaining_turns == other.remaining_turns) &&
+         (this->a_arg_value == other.a_arg_value) &&
+         (this->dice_roll_value == other.dice_roll_value) &&
+         (this->flags == other.flags) &&
+         (this->card_definition_effect_index == other.card_definition_effect_index) &&
+         (this->card_ref == other.card_ref) &&
+         (this->value == other.value) &&
+         (this->condition_giver_card_ref == other.condition_giver_card_ref) &&
+         (this->random_percent == other.random_percent) &&
+         (this->value8 == other.value8) &&
+         (this->order == other.order) &&
+         (this->unknown_a8 == other.unknown_a8);
+}
+bool Condition::operator!=(const Condition& other) const {
+  return !this->operator==(other);
+}
+
 void Condition::clear() {
   this->type = ConditionType::NONE;
   this->remaining_turns = 0;
@@ -69,6 +88,19 @@ CardShortStatus::CardShortStatus() {
   this->clear();
 }
 
+bool CardShortStatus::operator==(const CardShortStatus& other) const {
+  return (this->card_ref == other.card_ref) &&
+         (this->current_hp == other.current_hp) &&
+         (this->card_flags == other.card_flags) &&
+         (this->loc == other.loc) &&
+         (this->unused1 == other.unused1) &&
+         (this->max_hp == other.max_hp) &&
+         (this->unused2 == other.unused2);
+}
+bool CardShortStatus::operator!=(const CardShortStatus& other) const {
+  return !this->operator==(other);
+}
+
 void CardShortStatus::clear() {
   this->card_ref = 0xFFFF;
   this->current_hp = 0;
@@ -112,6 +144,33 @@ ActionChain::ActionChain() {
   this->clear();
 }
 
+bool ActionChain::operator==(const ActionChain& other) const {
+  return (this->effective_ap == other.effective_ap) &&
+         (this->effective_tp == other.effective_tp) &&
+         (this->ap_effect_bonus == other.ap_effect_bonus) &&
+         (this->damage == other.damage) &&
+         (this->acting_card_ref == other.acting_card_ref) &&
+         (this->unknown_card_ref_a3 == other.unknown_card_ref_a3) &&
+         (this->attack_action_card_refs == other.attack_action_card_refs) &&
+         (this->attack_action_card_ref_count == other.attack_action_card_ref_count) &&
+         (this->attack_medium == other.attack_medium) &&
+         (this->target_card_ref_count == other.target_card_ref_count) &&
+         (this->action_subphase == other.action_subphase) &&
+         (this->strike_count == other.strike_count) &&
+         (this->damage_multiplier == other.damage_multiplier) &&
+         (this->attack_number == other.attack_number) &&
+         (this->tp_effect_bonus == other.tp_effect_bonus) &&
+         (this->unused1 == other.unused1) &&
+         (this->unused2 == other.unused2) &&
+         (this->card_ap == other.card_ap) &&
+         (this->card_tp == other.card_tp) &&
+         (this->flags == other.flags) &&
+         (this->target_card_refs == other.target_card_refs);
+}
+bool ActionChain::operator!=(const ActionChain& other) const {
+  return !this->operator==(other);
+}
+
 void ActionChain::clear() {
   this->effective_ap = 0;
   this->effective_tp = 0;
@@ -166,6 +225,13 @@ ActionChainWithConds::ActionChainWithConds() {
   this->clear();
 }
 
+bool ActionChainWithConds::operator==(const ActionChainWithConds& other) const {
+  return (this->chain == other.chain && this->conditions == other.conditions);
+}
+bool ActionChainWithConds::operator!=(const ActionChainWithConds& other) const {
+  return !this->operator==(other);
+}
+
 void ActionChainWithConds::clear() {
   this->chain.effective_ap = 0;
   this->chain.effective_tp = 0;
@@ -298,6 +364,23 @@ ActionMetadata::ActionMetadata() {
   this->clear();
 }
 
+bool ActionMetadata::operator==(const ActionMetadata& other) const {
+  return (this->card_ref == other.card_ref) &&
+         (this->target_card_ref_count == other.target_card_ref_count) &&
+         (this->defense_card_ref_count == other.defense_card_ref_count) &&
+         (this->action_subphase == other.action_subphase) &&
+         (this->defense_power == other.defense_power) &&
+         (this->defense_bonus == other.defense_bonus) &&
+         (this->attack_bonus == other.attack_bonus) &&
+         (this->flags == other.flags) &&
+         (this->target_card_refs == other.target_card_refs) &&
+         (this->defense_card_refs == other.defense_card_refs) &&
+         (this->original_attacker_card_refs == other.original_attacker_card_refs);
+}
+bool ActionMetadata::operator!=(const ActionMetadata& other) const {
+  return !this->operator==(other);
+}
+
 void ActionMetadata::clear() {
   this->card_ref = 0xFFFF;
   this->target_card_ref_count = 0;
diff --git a/src/Episode3/PlayerStateSubordinates.hh b/src/Episode3/PlayerStateSubordinates.hh
index a72c2209..a12f7e39 100644
--- a/src/Episode3/PlayerStateSubordinates.hh
+++ b/src/Episode3/PlayerStateSubordinates.hh
@@ -31,8 +31,8 @@ struct Condition {
   uint8_t unknown_a8;
 
   Condition();
-  bool operator==(const Condition& other) const = default;
-  bool operator!=(const Condition& other) const = default;
+  bool operator==(const Condition& other) const;
+  bool operator!=(const Condition& other) const;
 
   void clear();
   void clear_FF();
@@ -51,8 +51,8 @@ struct EffectResult {
   uint8_t dice_roll_value;
 
   EffectResult();
-  bool operator==(const EffectResult& other) const = default;
-  bool operator!=(const EffectResult& other) const = default;
+  bool operator==(const EffectResult& other) const;
+  bool operator!=(const EffectResult& other) const;
 
   void clear();
 } __attribute__((packed));
@@ -67,8 +67,8 @@ struct CardShortStatus {
   uint8_t unused2;
 
   CardShortStatus();
-  bool operator==(const CardShortStatus& other) const = default;
-  bool operator!=(const CardShortStatus& other) const = default;
+  bool operator==(const CardShortStatus& other) const;
+  bool operator!=(const CardShortStatus& other) const;
 
   void clear();
   void clear_FF();
@@ -85,8 +85,8 @@ struct ActionState {
   le_uint16_t original_attacker_card_ref;
 
   ActionState();
-  bool operator==(const ActionState& other) const = default;
-  bool operator!=(const ActionState& other) const = default;
+  bool operator==(const ActionState& other) const;
+  bool operator!=(const ActionState& other) const;
 
   void clear();
 } __attribute__((packed));
@@ -115,8 +115,8 @@ struct ActionChain {
   parray<le_uint16_t, 4 * 9> target_card_refs;
 
   ActionChain();
-  bool operator==(const ActionChain& other) const = default;
-  bool operator!=(const ActionChain& other) const = default;
+  bool operator==(const ActionChain& other) const;
+  bool operator!=(const ActionChain& other) const;
 
   void clear();
   void clear_FF();
@@ -127,8 +127,8 @@ struct ActionChainWithConds {
   parray<Condition, 9> conditions;
 
   ActionChainWithConds();
-  bool operator==(const ActionChainWithConds& other) const = default;
-  bool operator!=(const ActionChainWithConds& other) const = default;
+  bool operator==(const ActionChainWithConds& other) const;
+  bool operator!=(const ActionChainWithConds& other) const;
 
   void clear();
   void clear_FF();
@@ -169,8 +169,8 @@ struct ActionMetadata {
   parray<le_uint16_t, 8> original_attacker_card_refs;
 
   ActionMetadata();
-  bool operator==(const ActionMetadata& other) const = default;
-  bool operator!=(const ActionMetadata& other) const = default;
+  bool operator==(const ActionMetadata& other) const;
+  bool operator!=(const ActionMetadata& other) const;
 
   void clear();
   void clear_FF();
@@ -213,8 +213,8 @@ struct HandAndEquipState {
   parray<uint8_t, 2> unused2;
 
   HandAndEquipState();
-  bool operator==(const HandAndEquipState& other) const = default;
-  bool operator!=(const HandAndEquipState& other) const = default;
+  bool operator==(const HandAndEquipState& other) const;
+  bool operator!=(const HandAndEquipState& other) const;
 
   void clear();
   void clear_FF();