diff --git a/core/src/mindustry/core/Control.java b/core/src/mindustry/core/Control.java
index 2520c18b70..cb6d914aa0 100644
--- a/core/src/mindustry/core/Control.java
+++ b/core/src/mindustry/core/Control.java
@@ -158,6 +158,19 @@ public class Control implements ApplicationListener, Loadable{
             }
         });
 
+        //delete save on campaign game over
+        Events.on(GameOverEvent.class, e -> {
+            if(state.isCampaign() && !net.client() && !headless){
+
+                //delete the save, it is gone.
+                if(saves.getCurrent() != null && !state.rules.tutorial){
+                    Sector sector = state.getSector();
+                    sector.save = null;
+                    saves.getCurrent().delete();
+                }
+            }
+        });
+
         Events.on(Trigger.newGame, () -> {
             Building core = player.closestCore();
 
diff --git a/core/src/mindustry/game/SpawnGroup.java b/core/src/mindustry/game/SpawnGroup.java
index ad2cf44592..15f7c98fff 100644
--- a/core/src/mindustry/game/SpawnGroup.java
+++ b/core/src/mindustry/game/SpawnGroup.java
@@ -5,6 +5,7 @@ import arc.util.serialization.Json.*;
 import mindustry.content.*;
 import mindustry.ctype.*;
 import mindustry.gen.*;
+import mindustry.io.legacy.*;
 import mindustry.type.*;
 
 import static mindustry.Vars.content;
@@ -93,7 +94,9 @@ public class SpawnGroup implements Serializable{
 
     @Override
     public void read(Json json, JsonValue data){
-        type = content.getByName(ContentType.unit, data.getString("type", "dagger"));
+        String tname = data.getString("type", "dagger");
+
+        type = content.getByName(ContentType.unit, LegacyIO.unitMap.get(tname, tname));
         if(type == null) type = UnitTypes.dagger;
         begin = data.getInt("begin", 0);
         end = data.getInt("end", never);
diff --git a/core/src/mindustry/io/legacy/LegacyIO.java b/core/src/mindustry/io/legacy/LegacyIO.java
index 621533b418..1d0a790159 100644
--- a/core/src/mindustry/io/legacy/LegacyIO.java
+++ b/core/src/mindustry/io/legacy/LegacyIO.java
@@ -7,6 +7,21 @@ import mindustry.ui.dialogs.JoinDialog.*;
 import java.io.*;
 
 public class LegacyIO{
+    /** Maps old unit names to new ones. */
+    public static final StringMap unitMap = StringMap.of(
+    "titan", "mace",
+    "chaos-array", "vestige",
+    "eradicator", "cataclyst",
+    "eruptor", "atrax",
+    "wraith", "flare",
+    "ghoul", "horizon",
+    "revenant", "zenith",
+    "lich", "antumbra",
+    "reaper", "eclipse",
+    "draug", "mono",
+    "phantom", "poly",
+    "spirit", "poly"
+    );
 
     public static Seq<Server> readServers(){
         Seq<Server> arr = new Seq<>();