diff --git a/scripts/managers/player_movement_manager.gd b/scripts/managers/player_movement_manager.gd
index c2f59d6..23c5239 100644
--- a/scripts/managers/player_movement_manager.gd
+++ b/scripts/managers/player_movement_manager.gd
@@ -120,17 +120,24 @@ func simple_move_to(grid_position: Vector2i) -> bool:
 	
 	rotate_towards_target(grid_position)
 	
-	if player.is_multiplayer_authority() and _can_rpc():
+	if player.is_multiplayer_authority():
 		if player.has_method("sync_walk_animation"):
-			player.rpc("sync_walk_animation")
+			if _can_rpc():
+				player.rpc("sync_walk_animation")
+			else:
+				player.sync_walk_animation()
 
 	var path = [Vector2(player.current_position.x, player.current_position.y), Vector2(grid_position.x, grid_position.y)]
 	path.pop_front()
 	
 	current_move_direction = grid_position - player.current_position
 	
-	if player.is_multiplayer_authority() and _can_rpc():
-		player.rpc("start_movement_along_path", path, not (player.is_bot or player.is_in_group("Bots")))
+	if player.is_multiplayer_authority():
+		var is_bot = player.is_bot or player.is_in_group("Bots")
+		if _can_rpc():
+			player.rpc("start_movement_along_path", path, not is_bot)
+		else:
+			player.start_movement_along_path(path, not is_bot)
 	
 	return true
 
diff --git a/scripts/managers/stop_n_go_manager.gd b/scripts/managers/stop_n_go_manager.gd
index fc31335..0b0f3fc 100644
--- a/scripts/managers/stop_n_go_manager.gd
+++ b/scripts/managers/stop_n_go_manager.gd
@@ -244,14 +244,11 @@ func _apply_arena_setup():
 	# Spawn tiles for missions
 	if multiplayer.is_server():
 		_spawn_mission_tiles()
+		# Client already constructs the base arena locally via _apply_arena_setup()
+		# So no need to blast huge 5KB arrays across the network.
 		
-		# Sync the WHOLE grid to all clients to ensure size and stripes are correct
-		var main = get_node("/root/Main")
-		if main and can_rpc():
-			# Gather all floor 0 and floor 1 data
-			var floor0_data = gridmap.get_floor_data(0)
-			var floor1_data = gridmap.get_floor_data(1)
-			main.rpc("sync_full_grid_data_stop_n_go", floor0_data, floor1_data, gridmap.columns, gridmap.rows)
+		# For any specifically spawned tiles (like missions), they are sent individually
+		# by sync_grid_item inside _spawn_mission_tiles.
 
 func _spawn_mission_tiles():
 	var gridmap = get_node("/root/Main/EnhancedGridMap")
@@ -270,6 +267,9 @@ func _spawn_mission_tiles():
 			if (floor_item == TILE_WALKABLE or floor_item == TILE_SAFE):
 				if gridmap.get_cell_item(Vector3i(x, 1, z)) == -1:
 					gridmap.set_cell_item(Vector3i(x, 1, z), tile_type)
+					var main = get_node("/root/Main")
+					if main and can_rpc():
+						main.rpc("sync_grid_item", x, 1, z, tile_type)
 					count += 1
 
 func _assign_missions():