Fixed #3095

core/src/mindustry/core/Control.java

@@ -284,6 +284,7 @@ public class Control implements ApplicationListener, Loadable{
 
                         //kill all units, since they should be dead anwyay
                         Groups.unit.clear();
+                        Groups.fire.clear();
 
                         Tile spawn = world.tile(sector.info.spawnPosition);
                         Schematics.placeLaunchLoadout(spawn.x, spawn.y);

core/src/mindustry/entities/GroupDefs.java

@@ -11,5 +11,6 @@ class GroupDefs<G>{
     @GroupDef(value = Buildingc.class) G build;
     @GroupDef(value = Syncc.class, mapping = true) G sync;
     @GroupDef(value = Drawc.class) G draw;
+    @GroupDef(value = Firec.class) G fire;
     @GroupDef(value = WeatherStatec.class) G weather;
 }