diff --git a/core/assets/bundles/bundle.properties b/core/assets/bundles/bundle.properties
index dbce16b750..f2a89e8508 100644
--- a/core/assets/bundles/bundle.properties
+++ b/core/assets/bundles/bundle.properties
@@ -542,6 +542,7 @@ planet.serpulo.name = Serpulo
 planet.sun.name = Sun
 
 #NOTE TO TRANSLATORS: don't bother editing these, they'll be removed and/or rewritten anyway
+sector.impact0078.name = Impact 0078
 sector.groundZero.name = Ground Zero
 sector.craters.name = The Craters
 sector.frozenForest.name = Frozen Forest
@@ -555,7 +556,6 @@ sector.saltFlats.name = Salt Flats
 sector.fungalPass.name = Fungal Pass
 
 #unused
-#sector.impact0078.name = Impact 0078
 #sector.crags.name = Crags
 
 sector.groundZero.description = The optimal location to begin once more. Low enemy threat. Few resources.\nGather as much lead and copper as possible.\nMove on.
diff --git a/core/assets/maps/fungalPass.msav b/core/assets/maps/fungalPass.msav
index b9a6f6575b..a97ca7706d 100644
Binary files a/core/assets/maps/fungalPass.msav and b/core/assets/maps/fungalPass.msav differ
diff --git a/core/assets/maps/impact0078.msav b/core/assets/maps/impact0078.msav
index 03bcfe8be2..fae74556ad 100644
Binary files a/core/assets/maps/impact0078.msav and b/core/assets/maps/impact0078.msav differ
diff --git a/core/assets/maps/tarFields.msav b/core/assets/maps/tarFields.msav
index cfd7ef7ae6..53c67a18cb 100644
Binary files a/core/assets/maps/tarFields.msav and b/core/assets/maps/tarFields.msav differ
diff --git a/core/src/mindustry/content/SectorPresets.java b/core/src/mindustry/content/SectorPresets.java
index 5b85810141..96107d7ca3 100644
--- a/core/src/mindustry/content/SectorPresets.java
+++ b/core/src/mindustry/content/SectorPresets.java
@@ -10,7 +10,7 @@ public class SectorPresets implements ContentList{
     groundZero,
     craters, frozenForest, ruinousShores, stainedMountains, tarFields, fungalPass,
     saltFlats, overgrowth,
-    desolateRift, nuclearComplex;
+    impact0078, desolateRift, nuclearComplex;
 
     @Override
     public void load(){
@@ -55,17 +55,22 @@ public class SectorPresets implements ContentList{
         }};
 
         tarFields = new SectorPreset("tarFields", serpulo, 23){{
-            captureWave = 50;
+            captureWave = 40;
             difficulty = 5;
         }};
 
+        impact0078 = new SectorPreset("impact0078", serpulo, 227){{
+            captureWave = 45;
+            difficulty = 7;
+        }};
+
         desolateRift = new SectorPreset("desolateRift", serpulo, 123){{
-            captureWave = 40;
+            captureWave = 30;
             difficulty = 8;
         }};
 
         nuclearComplex = new SectorPreset("nuclearComplex", serpulo, 130){{
-            captureWave = 60;
+            captureWave = 50;
             difficulty = 7;
         }};
     }
diff --git a/core/src/mindustry/content/TechTree.java b/core/src/mindustry/content/TechTree.java
index 13d7c8c7ac..b7eb855703 100644
--- a/core/src/mindustry/content/TechTree.java
+++ b/core/src/mindustry/content/TechTree.java
@@ -479,19 +479,25 @@ public class TechTree implements ContentList{
                             new Research(kiln),
                             new Research(mechanicalPump)
                         ), () -> {
-
                             node(tarFields, Seq.with(
                                 new SectorComplete(ruinousShores),
                                 new Research(coalCentrifuge),
                                 new Research(conduit),
                                 new Research(wave)
                             ), () -> {
-                                node(desolateRift, Seq.with(
+                                //TODO change positions?
+                                node(impact0078, Seq.with(
                                     new SectorComplete(tarFields),
-                                    new Research(thermalGenerator),
-                                    new Research(thoriumReactor)
+                                    new Research(Items.thorium),
+                                    new Research(overdriveProjector)
                                 ), () -> {
+                                    node(desolateRift, Seq.with(
+                                        new SectorComplete(impact0078),
+                                        new Research(thermalGenerator),
+                                        new Research(thoriumReactor)
+                                    ), () -> {
 
+                                    });
                                 });
                             });
 
diff --git a/core/src/mindustry/core/Control.java b/core/src/mindustry/core/Control.java
index b492199be5..d605eadb20 100644
--- a/core/src/mindustry/core/Control.java
+++ b/core/src/mindustry/core/Control.java
@@ -12,7 +12,6 @@ import arc.util.*;
 import mindustry.audio.*;
 import mindustry.content.*;
 import mindustry.core.GameState.*;
-import mindustry.ctype.*;
 import mindustry.entities.*;
 import mindustry.game.EventType.*;
 import mindustry.game.*;
@@ -406,6 +405,10 @@ public class Control implements ApplicationListener, Loadable{
             }
         }
 
+        for(Music music : assets.getAll(Music.class, new Seq<>())){
+            music.stop();
+        }
+
         content.dispose();
         net.dispose();
         Musics.dispose();
diff --git a/core/src/mindustry/game/Saves.java b/core/src/mindustry/game/Saves.java
index fb738b49b6..dc43f3c740 100644
--- a/core/src/mindustry/game/Saves.java
+++ b/core/src/mindustry/game/Saves.java
@@ -334,6 +334,9 @@ public class Saves{
         }
 
         public void delete(){
+            if(SaveIO.backupFileFor(file).exists()){
+                SaveIO.backupFileFor(file).delete();
+            }
             file.delete();
             saves.remove(this, true);
             if(this == current){
diff --git a/core/src/mindustry/graphics/g3d/PlanetRenderer.java b/core/src/mindustry/graphics/g3d/PlanetRenderer.java
index 156146f0b2..97da3a51a7 100644
--- a/core/src/mindustry/graphics/g3d/PlanetRenderer.java
+++ b/core/src/mindustry/graphics/g3d/PlanetRenderer.java
@@ -177,17 +177,23 @@ public class PlanetRenderer implements Disposable{
     }
 
     public void drawArc(Planet planet, Vec3 a, Vec3 b){
+        drawArc(planet, a, b, Pal.accent, Color.clear, 1f);
+    }
+    public void drawArc(Planet planet, Vec3 a, Vec3 b, Color from, Color to, float length){
+        drawArc(planet, a, b, from, to, length, 80f, 25);
+    }
+
+    public void drawArc(Planet planet, Vec3 a, Vec3 b, Color from, Color to, float length, float timeScale, int pointCount){
         Vec3 avg = Tmp.v31.set(b).add(a).scl(0.5f);
-        avg.setLength(planet.radius*2f);
+        avg.setLength(planet.radius*(1f+length));
 
         points.clear();
         points.addAll(Tmp.v33.set(b).setLength(outlineRad), Tmp.v31, Tmp.v34.set(a).setLength(outlineRad));
         Tmp.bz3.set(points);
-        float points = 25;
 
-        for(int i = 0; i < points + 1; i++){
-            float f = i / points;
-            Tmp.c1.set(Pal.accent).lerp(Color.clear, (f+Time.globalTime()/80f)%1f);
+        for(int i = 0; i < pointCount + 1; i++){
+            float f = i / (float)pointCount;
+            Tmp.c1.set(from).lerp(to, (f+Time.globalTime()/timeScale)%1f);
             batch.color(Tmp.c1);
             batch.vertex(Tmp.bz3.valueAt(Tmp.v32, f));
 
diff --git a/core/src/mindustry/ui/dialogs/PlanetDialog.java b/core/src/mindustry/ui/dialogs/PlanetDialog.java
index 151d777648..d170a6abb9 100644
--- a/core/src/mindustry/ui/dialogs/PlanetDialog.java
+++ b/core/src/mindustry/ui/dialogs/PlanetDialog.java
@@ -160,7 +160,7 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
                     if(canSelect(sec) || sec.unlocked()){
 
                         Color color =
-                        sec.hasBase() ? Team.sharded.color :
+                        sec.hasBase() ? Tmp.c2.set(Team.sharded.color).lerp(Team.crux.color, sec.hasEnemyBase() ? 0.5f : 0f) :
                         sec.preset != null ? Team.derelict.color :
                         sec.hasEnemyBase() ? Team.crux.color :
                         null;
@@ -202,6 +202,16 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
             }
         }
 
+        for(Sector sec : planet.sectors){
+            if(sec.hasBase()){
+                for(Sector enemy : sec.near()){
+                    if(enemy.hasEnemyBase()){
+                        planets.drawArc(planet, enemy.tile.v, sec.tile.v, Team.crux.color, Color.clear, 0.24f, 110f, 25);
+                    }
+                }
+            }
+        }
+
         /*
         //TODO render arcs
         if(selected != null && selected.preset != null){
@@ -391,6 +401,9 @@ public class PlanetDialog extends BaseDialog implements PlanetInterfaceRenderer{
                 (plus ? "+" : "") + (toCapture < 0 ? "" : "/" + toCapture) + " waves");
                 stable.row();
             }
+        }else if(sector.hasBase() && sector.near().contains(Sector::hasEnemyBase)){
+            stable.add("[scarlet]Vulnerable");
+            stable.row();
         }
 
         if(sector.save != null && sector.info.resources.any()){
diff --git a/core/src/mindustry/ui/dialogs/SettingsMenuDialog.java b/core/src/mindustry/ui/dialogs/SettingsMenuDialog.java
index 78a9a18853..378e909922 100644
--- a/core/src/mindustry/ui/dialogs/SettingsMenuDialog.java
+++ b/core/src/mindustry/ui/dialogs/SettingsMenuDialog.java
@@ -146,6 +146,12 @@ public class SettingsMenuDialog extends SettingsDialog{
                             }
                         }
                     }
+                    
+                    for(var slot : control.saves.getSaveSlots().copy()){
+                        if(slot.isSector()){
+                            slot.delete();
+                        }
+                    }
                 });
             }).marginLeft(4);
 
diff --git a/core/src/mindustry/world/blocks/defense/turrets/ItemTurret.java b/core/src/mindustry/world/blocks/defense/turrets/ItemTurret.java
index 7550f23e79..9d1c29a69b 100644
--- a/core/src/mindustry/world/blocks/defense/turrets/ItemTurret.java
+++ b/core/src/mindustry/world/blocks/defense/turrets/ItemTurret.java
@@ -177,7 +177,7 @@ public class ItemTurret extends Turret{
                 totalAmmo += a;
 
                 //only add ammo if this is a valid ammo type
-                if(ammoTypes.containsKey(item)){
+                if(item != null && ammoTypes.containsKey(item)){
                     ammo.add(new ItemEntry(item, a));
                 }
             }
diff --git a/core/src/mindustry/world/blocks/storage/CoreBlock.java b/core/src/mindustry/world/blocks/storage/CoreBlock.java
index df3686baff..9c0eee32ac 100644
--- a/core/src/mindustry/world/blocks/storage/CoreBlock.java
+++ b/core/src/mindustry/world/blocks/storage/CoreBlock.java
@@ -210,7 +210,7 @@ public class CoreBlock extends StorageBlock{
             super.onDestroyed();
 
             //add a spawn to the map for future reference - waves should be disabled, so it shouldn't matter
-            if(state.isCampaign() && team == state.rules.waveTeam){
+            if(state.isCampaign() && team == state.rules.waveTeam && team.cores().size <= 1){
                 //do not recache
                 tile.setOverlayQuiet(Blocks.spawn);
 
diff --git a/gradle.properties b/gradle.properties
index add8844ab6..7ef5b71bd1 100644
--- a/gradle.properties
+++ b/gradle.properties
@@ -1,3 +1,3 @@
 org.gradle.daemon=true
 org.gradle.jvmargs=-Xms256m -Xmx1024m
-archash=c7c50c8d46cffff0526c0f86c7f160fd07a04309
+archash=5e0057b1eb96674f613caf5f7e732bd9f338a98f