diff --git a/core/src/io/anuke/mindustry/Vars.java b/core/src/io/anuke/mindustry/Vars.java
index dc493e8f45..7109e7dcb4 100644
--- a/core/src/io/anuke/mindustry/Vars.java
+++ b/core/src/io/anuke/mindustry/Vars.java
@@ -45,7 +45,7 @@ public class Vars{
    // public static final int saveSlots = 64;
     public static final float itemSize = 5f;
     public static final int tilesize = 8;
-    public static final int sectorSize = 256;
+    public static final int sectorSize = 300;
     public static final int mapPadding = 3;
     public static final int invalidSector = Integer.MAX_VALUE;
     public static Locale[] locales;
diff --git a/core/src/io/anuke/mindustry/entities/Unit.java b/core/src/io/anuke/mindustry/entities/Unit.java
index 00a2792cbc..e234c4936a 100644
--- a/core/src/io/anuke/mindustry/entities/Unit.java
+++ b/core/src/io/anuke/mindustry/entities/Unit.java
@@ -214,9 +214,7 @@ public abstract class Unit extends DestructibleEntity implements SaveTrait, Targ
         });
     }
 
-    /**
-     * Updates velocity and status effects.
-     */
+    /**Updates velocity and status effects.*/
     public void updateVelocityStatus(float drag, float maxVelocity){
         if(isCarried()){ //carried units do not take into account velocity normally
             set(carrier.getX(), carrier.getY());
diff --git a/core/src/io/anuke/mindustry/maps/Sector.java b/core/src/io/anuke/mindustry/maps/Sector.java
index add9c43484..af8089f1d4 100644
--- a/core/src/io/anuke/mindustry/maps/Sector.java
+++ b/core/src/io/anuke/mindustry/maps/Sector.java
@@ -4,8 +4,8 @@ import com.badlogic.gdx.graphics.Texture;
 import com.badlogic.gdx.utils.Array;
 import io.anuke.mindustry.game.Saves.SaveSlot;
 import io.anuke.mindustry.game.SpawnGroup;
-import io.anuke.mindustry.maps.goals.Mission;
-import io.anuke.mindustry.maps.goals.WaveMission;
+import io.anuke.mindustry.maps.missions.Mission;
+import io.anuke.mindustry.maps.missions.WaveMission;
 import io.anuke.mindustry.type.Item;
 import io.anuke.ucore.util.Bits;
 
diff --git a/core/src/io/anuke/mindustry/maps/Sectors.java b/core/src/io/anuke/mindustry/maps/Sectors.java
index 5fc6942692..6cf897eaec 100644
--- a/core/src/io/anuke/mindustry/maps/Sectors.java
+++ b/core/src/io/anuke/mindustry/maps/Sectors.java
@@ -9,7 +9,7 @@ import io.anuke.mindustry.content.Items;
 import io.anuke.mindustry.core.GameState.State;
 import io.anuke.mindustry.game.Team;
 import io.anuke.mindustry.maps.generation.WorldGenerator.GenResult;
-import io.anuke.mindustry.maps.goals.BattleMission;
+import io.anuke.mindustry.maps.missions.BattleMission;
 import io.anuke.mindustry.world.ColorMapper;
 import io.anuke.mindustry.world.Edges;
 import io.anuke.ucore.core.Settings;
diff --git a/core/src/io/anuke/mindustry/maps/generation/WorldGenerator.java b/core/src/io/anuke/mindustry/maps/generation/WorldGenerator.java
index a76d9cc72e..32abff70cf 100644
--- a/core/src/io/anuke/mindustry/maps/generation/WorldGenerator.java
+++ b/core/src/io/anuke/mindustry/maps/generation/WorldGenerator.java
@@ -207,7 +207,7 @@ public class WorldGenerator{
             }
         }
 
-        int coreX = width/2, coreY = height/3;
+        int coreX = 60, coreY = 60;
 
         tiles[coreX][coreY].setBlock(StorageBlocks.core);
         tiles[coreX][coreY].setTeam(Team.blue);
diff --git a/core/src/io/anuke/mindustry/maps/goals/BattleMission.java b/core/src/io/anuke/mindustry/maps/goals/BattleMission.java
deleted file mode 100644
index 594a186df0..0000000000
--- a/core/src/io/anuke/mindustry/maps/goals/BattleMission.java
+++ /dev/null
@@ -1,26 +0,0 @@
-package io.anuke.mindustry.maps.goals;
-
-import io.anuke.mindustry.Vars;
-import io.anuke.mindustry.content.blocks.StorageBlocks;
-import io.anuke.mindustry.game.Team;
-import io.anuke.mindustry.maps.Sector;
-import io.anuke.mindustry.world.Tile;
-import io.anuke.ucore.util.Mathf;
-
-public class BattleMission implements Mission{
-
-    @Override
-    public void generate(Tile[][] tiles, Sector sector){
-        int x = Mathf.randomSeed(sector.getSeed(), 1, tiles.length - 2);
-        int y = Mathf.randomSeed(sector.getSeed(), 1, tiles[0].length - 2);
-
-        tiles[x][y].setBlock(StorageBlocks.core);
-        tiles[x][y].setTeam(Team.red);
-    }
-
-    @Override
-    public boolean isComplete(){
-        //TODO check all enemy teams, not just the first
-        return Vars.state.teams.getTeams(false).first().cores.size == 0;
-    }
-}
diff --git a/core/src/io/anuke/mindustry/maps/missions/BattleMission.java b/core/src/io/anuke/mindustry/maps/missions/BattleMission.java
new file mode 100644
index 0000000000..de37236596
--- /dev/null
+++ b/core/src/io/anuke/mindustry/maps/missions/BattleMission.java
@@ -0,0 +1,35 @@
+package io.anuke.mindustry.maps.missions;
+
+import io.anuke.mindustry.Vars;
+import io.anuke.mindustry.content.blocks.StorageBlocks;
+import io.anuke.mindustry.game.Team;
+import io.anuke.mindustry.maps.Sector;
+import io.anuke.mindustry.world.Tile;
+
+public class BattleMission implements Mission{
+
+    @Override
+    public void generate(Tile[][] tiles, Sector sector){
+        int cx = 0, cy = 0;
+        outer:
+        for(int x = 0; x < tiles.length; x++){
+            for(int y = 0; y < tiles[0].length; y++){
+                if(tiles[x][y].block() == StorageBlocks.core){
+                    //set enemy core position to mirrored player core position
+                    cx = tiles.length - 1 - x;
+                    cy = tiles[0].length - 1 - y;
+                    break outer;
+                }
+            }
+        }
+
+        tiles[cx][cy].setBlock(StorageBlocks.core);
+        tiles[cx][cy].setTeam(Team.red);
+    }
+
+    @Override
+    public boolean isComplete(){
+        //TODO check all enemy teams, not just the first
+        return Vars.state.teams.getTeams(false).first().cores.size == 0;
+    }
+}
diff --git a/core/src/io/anuke/mindustry/maps/goals/Mission.java b/core/src/io/anuke/mindustry/maps/missions/Mission.java
similarity index 82%
rename from core/src/io/anuke/mindustry/maps/goals/Mission.java
rename to core/src/io/anuke/mindustry/maps/missions/Mission.java
index c035c5415e..9b9c22c082 100644
--- a/core/src/io/anuke/mindustry/maps/goals/Mission.java
+++ b/core/src/io/anuke/mindustry/maps/missions/Mission.java
@@ -1,4 +1,4 @@
-package io.anuke.mindustry.maps.goals;
+package io.anuke.mindustry.maps.missions;
 
 import io.anuke.mindustry.maps.Sector;
 import io.anuke.mindustry.world.Tile;
diff --git a/core/src/io/anuke/mindustry/maps/goals/WaveMission.java b/core/src/io/anuke/mindustry/maps/missions/WaveMission.java
similarity index 87%
rename from core/src/io/anuke/mindustry/maps/goals/WaveMission.java
rename to core/src/io/anuke/mindustry/maps/missions/WaveMission.java
index 2a6eb69890..88c84fa673 100644
--- a/core/src/io/anuke/mindustry/maps/goals/WaveMission.java
+++ b/core/src/io/anuke/mindustry/maps/missions/WaveMission.java
@@ -1,4 +1,4 @@
-package io.anuke.mindustry.maps.goals;
+package io.anuke.mindustry.maps.missions;
 
 import static io.anuke.mindustry.Vars.*;
 
diff --git a/core/src/io/anuke/mindustry/type/Recipe.java b/core/src/io/anuke/mindustry/type/Recipe.java
index 36b5e4bca6..b8040acabe 100644
--- a/core/src/io/anuke/mindustry/type/Recipe.java
+++ b/core/src/io/anuke/mindustry/type/Recipe.java
@@ -113,7 +113,7 @@ public class Recipe implements UnlockableContent{
 
     @Override
     public boolean isHidden(){
-        return debugOnly;
+        return debugOnly || (desktopOnly && mobile);
     }
 
     @Override