Dense alloy / Compile errors fixed

core/src/io/anuke/mindustry/entities/units/UnitDrops.java

@@ -17,7 +17,7 @@ public class UnitDrops{
         }
 
         if(dropTable == null){
-            dropTable = new Item[]{Items.tungsten, Items.lead, Items.carbide};
+            dropTable = new Item[]{Items.densealloy, Items.lead, Items.copper};
         }
 
         for(int i = 0; i < 3; i++){

core/src/io/anuke/mindustry/entities/units/UnitType.java

@@ -45,7 +45,7 @@ public class UnitType implements UnlockableContent{
     public float carryWeight = 1f;
     public int ammoCapacity = 200;
     public int itemCapacity = 30;
-    public ObjectSet<Item> toMine = ObjectSet.with(Items.lead, Items.tungsten);
+    public ObjectSet<Item> toMine = ObjectSet.with(Items.lead, Items.copper);
     public float buildPower = 0.3f, minePower = 0.7f, healSpeed = 0.1f;
     public Weapon weapon = Weapons.blaster;
     public float weaponOffsetX, weaponOffsetY;