diff --git a/common/main/cntrlcen.h b/common/main/cntrlcen.h
index e30cb6c0f..fbeaea5da 100644
--- a/common/main/cntrlcen.h
+++ b/common/main/cntrlcen.h
@@ -105,7 +105,6 @@ static inline reactor &get_reactor_definition(int id)
 
 namespace dcx {
 //@@extern int N_controlcen_guns;
-extern int Control_center_next_fire_time;
 extern int Control_center_present;
 extern objnum_t Dead_controlcen_object_num;
 }
diff --git a/common/main/object.h b/common/main/object.h
index 5f9e68d52..768e1c710 100644
--- a/common/main/object.h
+++ b/common/main/object.h
@@ -571,6 +571,7 @@ struct d_level_unique_control_center_state
 	uint8_t Control_center_been_hit;
 	int Countdown_seconds_left;
 	fix Countdown_timer;
+	fix Control_center_next_fire_time;
 	int Total_countdown_time;		//in whole seconds
 };
 
diff --git a/similar/main/cntrlcen.cpp b/similar/main/cntrlcen.cpp
index a50cf0949..02127b0d1 100644
--- a/similar/main/cntrlcen.cpp
+++ b/similar/main/cntrlcen.cpp
@@ -70,7 +70,6 @@ control_center_triggers ControlCenterTriggers;
 namespace dcx {
 
 player_visibility_state Control_center_player_been_seen;
-int	Control_center_next_fire_time;
 int	Control_center_present;
 
 }
@@ -365,7 +364,7 @@ void do_controlcen_frame(const vmobjptridx_t obj)
 			auto dist_to_player = vm_vec_normalize_quick(vec_to_player);
 			if (dist_to_player < F1_0*200) {
 				Control_center_player_been_seen = player_is_visible_from_object(obj, obj->pos, 0, vec_to_player);
-				Control_center_next_fire_time = 0;
+				LevelUniqueControlCenterState.Control_center_next_fire_time = 0;
 			}
 		}			
 
@@ -397,7 +396,8 @@ void do_controlcen_frame(const vmobjptridx_t obj)
 	else
 		controlcen_death_silence = 0;
 
-	if ((Control_center_next_fire_time < 0) && !(controlcen_death_silence > F1_0*2)) {
+	if (LevelUniqueControlCenterState.Control_center_next_fire_time < 0 && !(controlcen_death_silence > F1_0*2))
+	{
 		auto &player_info = plrobj.ctype.player_info;
 		const auto &player_pos = (player_info.powerup_flags & PLAYER_FLAGS_CLOAKED) ? Believed_player_pos : ConsoleObject->pos;
 		best_gun_num = calc_best_gun(
@@ -453,12 +453,11 @@ void do_controlcen_frame(const vmobjptridx_t obj)
 			if (Game_mode & GM_MULTI) // slow down rate of fire in multi player
 				delta_fire_time *= 2;
 
-			Control_center_next_fire_time = delta_fire_time;
+			LevelUniqueControlCenterState.Control_center_next_fire_time = delta_fire_time;
 
 		}
 	} else
-		Control_center_next_fire_time -= FrameTime;
-
+		LevelUniqueControlCenterState.Control_center_next_fire_time -= FrameTime;
 }
 
 //	-----------------------------------------------------------------------------
@@ -533,7 +532,7 @@ void init_controlcen_for_level(void)
 	//	Say the control center has not yet been hit.
 	LevelUniqueControlCenterState.Control_center_been_hit = 0;
 	Control_center_player_been_seen = player_visibility_state::no_line_of_sight;
-	Control_center_next_fire_time = 0;
+	LevelUniqueControlCenterState.Control_center_next_fire_time = 0;
 	
 	Dead_controlcen_object_num = object_none;
 }
diff --git a/similar/main/state.cpp b/similar/main/state.cpp
index 9aaaba3b0..52c32e74b 100644
--- a/similar/main/state.cpp
+++ b/similar/main/state.cpp
@@ -1237,7 +1237,7 @@ int state_save_all_sub(const char *filename, const char *desc)
 		const auto cc = static_cast<int>(Control_center_player_been_seen);
 		PHYSFS_write(fp, &cc, sizeof(int), 1);
 	}
-	PHYSFS_write(fp, &Control_center_next_fire_time, sizeof(int), 1);
+	PHYSFS_write(fp, &LevelUniqueControlCenterState.Control_center_next_fire_time, sizeof(int), 1);
 	PHYSFS_write(fp, &Control_center_present, sizeof(int), 1);
 	int dead_controlcen_object_num = Dead_controlcen_object_num == object_none ? -1 : Dead_controlcen_object_num;
 	PHYSFS_write(fp, &dead_controlcen_object_num, sizeof(int), 1);
@@ -1861,7 +1861,7 @@ int state_restore_all_sub(const d_level_shared_destructible_light_state &LevelSh
 		const int cc = PHYSFSX_readSXE32(fp, swap);
 		Control_center_player_been_seen = static_cast<player_visibility_state>(cc);
 	}
-	Control_center_next_fire_time = PHYSFSX_readSXE32(fp, swap);
+	LevelUniqueControlCenterState.Control_center_next_fire_time = PHYSFSX_readSXE32(fp, swap);
 	Control_center_present = PHYSFSX_readSXE32(fp, swap);
 	Dead_controlcen_object_num = PHYSFSX_readSXE32(fp, swap);
 	if (LevelUniqueControlCenterState.Control_center_destroyed)