diff --git a/core/src/mindustry/ai/BlockIndexer.java b/core/src/mindustry/ai/BlockIndexer.java
index e79077e3e9..36c0c64959 100644
--- a/core/src/mindustry/ai/BlockIndexer.java
+++ b/core/src/mindustry/ai/BlockIndexer.java
@@ -6,7 +6,6 @@ import arc.math.*;
 import arc.math.geom.*;
 import arc.struct.EnumSet;
 import arc.struct.*;
-import arc.util.*;
 import mindustry.content.*;
 import mindustry.game.EventType.*;
 import mindustry.game.*;
@@ -111,11 +110,10 @@ public class BlockIndexer{
     }
 
     private GridBits structQuadrant(Team t){
-        int id = Pack.u(t.id);
-        if(structQuadrants[id] == null){
-            structQuadrants[id] = new GridBits(Mathf.ceil(world.width() / (float)quadrantSize), Mathf.ceil(world.height() / (float)quadrantSize));
+        if(structQuadrants[t.id] == null){
+            structQuadrants[t.id] = new GridBits(Mathf.ceil(world.width() / (float)quadrantSize), Mathf.ceil(world.height() / (float)quadrantSize));
         }
-        return structQuadrants[id];
+        return structQuadrants[t.id];
     }
 
     /** Updates all the structure quadrants for a newly activated team. */
diff --git a/core/src/mindustry/ai/Pathfinder.java b/core/src/mindustry/ai/Pathfinder.java
index c7c7ac00bf..00fc4567d3 100644
--- a/core/src/mindustry/ai/Pathfinder.java
+++ b/core/src/mindustry/ai/Pathfinder.java
@@ -68,7 +68,7 @@ public class Pathfinder implements Runnable{
 
     /** Packs a tile into its internal representation. */
     private int packTile(Tile tile){
-        return PathTile.get(tile.cost, tile.getTeamID(), !tile.solid() && tile.floor().drownTime <= 0f, !tile.solid() && tile.floor().isLiquid);
+        return PathTile.get(tile.cost, (byte)tile.getTeamID(), !tile.solid() && tile.floor().drownTime <= 0f, !tile.solid() && tile.floor().isLiquid);
     }
 
     /** Starts or restarts the pathfinding thread. */
@@ -144,9 +144,9 @@ public class Pathfinder implements Runnable{
 
                             Core.app.post(() -> {
                                 //remove its used state
-                                if(fieldMap[team.uid] != null){
-                                    fieldMap[team.uid].remove(data.target);
-                                    fieldMapUsed[team.uid].remove(data.target);
+                                if(fieldMap[team.id] != null){
+                                    fieldMap[team.id].remove(data.target);
+                                    fieldMapUsed[team.id].remove(data.target);
                                 }
                                 //remove from main thread list
                                 mainList.remove(data);
@@ -180,16 +180,16 @@ public class Pathfinder implements Runnable{
     public Tile getTargetTile(Tile tile, Team team, PathTarget target){
         if(tile == null) return null;
 
-        if(fieldMap[team.uid] == null){
-            fieldMap[team.uid] = new ObjectMap<>();
-            fieldMapUsed[team.uid] = new ObjectSet<>();
+        if(fieldMap[team.id] == null){
+            fieldMap[team.id] = new ObjectMap<>();
+            fieldMapUsed[team.id] = new ObjectSet<>();
         }
 
-        Flowfield data = fieldMap[team.uid].get(target);
+        Flowfield data = fieldMap[team.id].get(target);
 
         if(data == null){
             //if this combination is not found, create it on request
-            if(fieldMapUsed[team.uid].add(target)){
+            if(fieldMapUsed[team.id].add(target)){
                 //grab targets since this is run on main thread
                 IntSeq targets = target.getPositions(team, new IntSeq());
                 queue.post(() -> createPath(team, target, targets));
@@ -311,8 +311,8 @@ public class Pathfinder implements Runnable{
         //add to main thread's list of paths
         Core.app.post(() -> {
             mainList.add(path);
-            if(fieldMap[team.uid] != null){
-                fieldMap[team.uid].put(target, path);
+            if(fieldMap[team.id] != null){
+                fieldMap[team.id].put(target, path);
             }
         });
 
diff --git a/core/src/mindustry/async/TeamIndexProcess.java b/core/src/mindustry/async/TeamIndexProcess.java
index b31ebcbe0b..f1d9a6324b 100644
--- a/core/src/mindustry/async/TeamIndexProcess.java
+++ b/core/src/mindustry/async/TeamIndexProcess.java
@@ -13,9 +13,9 @@ public class TeamIndexProcess implements AsyncProcess{
     private int[] counts = new int[Team.all.length];
 
     public QuadTree<Unit> tree(Team team){
-        if(trees[team.uid] == null) trees[team.uid] = new QuadTree<>(Vars.world.getQuadBounds(new Rect()));
+        if(trees[team.id] == null) trees[team.id] = new QuadTree<>(Vars.world.getQuadBounds(new Rect()));
 
-        return trees[team.uid];
+        return trees[team.id];
     }
 
     public int count(Team team){
@@ -36,8 +36,8 @@ public class TeamIndexProcess implements AsyncProcess{
     public void begin(){
 
         for(Team team : Team.all){
-            if(trees[team.uid] != null){
-                trees[team.uid].clear();
+            if(trees[team.id] != null){
+                trees[team.id].clear();
             }
         }
 
diff --git a/core/src/mindustry/content/Blocks.java b/core/src/mindustry/content/Blocks.java
index 6d4ffe8743..5be0e99890 100644
--- a/core/src/mindustry/content/Blocks.java
+++ b/core/src/mindustry/content/Blocks.java
@@ -1689,7 +1689,6 @@ public class Blocks implements ContentList{
             plans = new UnitPlan[]{
                 new UnitPlan(UnitTypes.wraith, 200f, with(Items.silicon, 10)),
                 new UnitPlan(UnitTypes.spirit, 200f, with(Items.silicon, 10)),
-                new UnitPlan(UnitTypes.draug, 200f, with(Items.silicon, 10)),
                 new UnitPlan(UnitTypes.phantom, 200f, with(Items.silicon, 10)),
             };
             size = 3;
diff --git a/core/src/mindustry/content/UnitTypes.java b/core/src/mindustry/content/UnitTypes.java
index 079794ed06..34f664aecb 100644
--- a/core/src/mindustry/content/UnitTypes.java
+++ b/core/src/mindustry/content/UnitTypes.java
@@ -13,7 +13,7 @@ import mindustry.type.*;
 public class UnitTypes implements ContentList{
 
     //ground
-    public static @EntityDef({Unitc.class, Mechc.class}) UnitType mace, dagger, crawler, fortress, chaosArray, eradicator;
+    public static @EntityDef({Unitc.class, Mechc.class}) UnitType mace, dagger, crawler, fortress, siegeArray, eradicator;
 
     //ground + builder
     public static @EntityDef({Unitc.class, Mechc.class, Builderc.class}) UnitType tau;
@@ -24,14 +24,14 @@ public class UnitTypes implements ContentList{
     //legs
     public static @EntityDef({Unitc.class, Legsc.class}) UnitType cix, eruptor;
 
-    //air
+    //air (no special traits)
     public static @EntityDef({Unitc.class}) UnitType wraith, reaper, ghoul, revenant, lich;
 
-    //air + mining
-    public static @EntityDef({Unitc.class, Minerc.class}) UnitType draug;
-
     //air + building
-    public static @EntityDef({Unitc.class, Builderc.class}) UnitType phantom, spirit;
+    public static @EntityDef({Unitc.class, Builderc.class}) UnitType spirit;
+
+    //air + mining
+    public static @EntityDef({Unitc.class, Minerc.class}) UnitType phantom;
 
     //air + building + mining
     //TODO implement other starter drones
@@ -403,19 +403,6 @@ public class UnitTypes implements ContentList{
             }});
         }};
 
-        draug = new UnitType("draug"){{
-            flying = true;
-            drag = 0.05f;
-            speed = 2f;
-            range = 50f;
-            accel = 0.2f;
-            health = 80;
-            mineSpeed = 0.9f;
-            engineSize = 1.8f;
-            engineOffset = 5.7f;
-            mineTier = 1;
-        }};
-
         spirit = new UnitType("spirit"){{
             flying = true;
             drag = 0.05f;
diff --git a/core/src/mindustry/editor/DrawOperation.java b/core/src/mindustry/editor/DrawOperation.java
index 0d6607e8ff..c28219f629 100755
--- a/core/src/mindustry/editor/DrawOperation.java
+++ b/core/src/mindustry/editor/DrawOperation.java
@@ -52,7 +52,7 @@ public class DrawOperation{
         }else if(type == OpType.rotation.ordinal()){
             return tile.rotation();
         }else if(type == OpType.team.ordinal()){
-            return tile.getTeamID();
+            return (byte)tile.getTeamID();
         }else if(type == OpType.overlay.ordinal()){
             return tile.overlayID();
         }
diff --git a/core/src/mindustry/editor/EditorTile.java b/core/src/mindustry/editor/EditorTile.java
index 853b141415..45965b4dab 100644
--- a/core/src/mindustry/editor/EditorTile.java
+++ b/core/src/mindustry/editor/EditorTile.java
@@ -55,7 +55,7 @@ public class EditorTile extends Tile{
 
         op(OpType.block, block.id);
         if(rotation != 0) op(OpType.rotation, (byte)rotation);
-        if(team() != Team.derelict) op(OpType.team, team().id);
+        if(team() != Team.derelict) op(OpType.team, (byte)team().id);
         super.setBlock(type, team, rotation);
     }
 
@@ -67,7 +67,7 @@ public class EditorTile extends Tile{
         }
 
         if(getTeamID() == team.id) return;
-        op(OpType.team, getTeamID());
+        op(OpType.team, (byte)getTeamID());
         super.setTeam(team);
     }
 
diff --git a/core/src/mindustry/editor/EditorTool.java b/core/src/mindustry/editor/EditorTool.java
index a6493d4401..47053049e2 100644
--- a/core/src/mindustry/editor/EditorTool.java
+++ b/core/src/mindustry/editor/EditorTool.java
@@ -139,7 +139,7 @@ public enum EditorTool{
                 if(tile.synthetic()){
                     Team dest = tile.team();
                     if(dest == editor.drawTeam) return;
-                    fill(editor, x, y, false, t -> t.getTeamID() == (int)dest.id && t.synthetic(), t -> t.setTeam(editor.drawTeam));
+                    fill(editor, x, y, false, t -> t.getTeamID() == dest.id && t.synthetic(), t -> t.setTeam(editor.drawTeam));
                 }
             }
         }
diff --git a/core/src/mindustry/editor/MapGenerateDialog.java b/core/src/mindustry/editor/MapGenerateDialog.java
index 0fafa14815..c7d7d86ae4 100644
--- a/core/src/mindustry/editor/MapGenerateDialog.java
+++ b/core/src/mindustry/editor/MapGenerateDialog.java
@@ -409,7 +409,7 @@ public class MapGenerateDialog extends BaseDialog{
             this.floor = floor.id;
             this.block = wall.id;
             this.ore = ore.id;
-            this.team = team.id;
+            this.team = (byte)team.id;
             this.rotation = (byte)rotation;
         }
 
diff --git a/core/src/mindustry/entities/comp/BuildingComp.java b/core/src/mindustry/entities/comp/BuildingComp.java
index 16be684f13..ebea044ba2 100644
--- a/core/src/mindustry/entities/comp/BuildingComp.java
+++ b/core/src/mindustry/entities/comp/BuildingComp.java
@@ -747,8 +747,8 @@ abstract class BuildingComp implements Posc, Teamc, Healthc, Buildingc, Timerc,
 
     public void drawTeamTop(){
         if(block.teamRegion.found()){
-            if(block.teamRegions[team.uid] == block.teamRegion) Draw.color(team.color);
-            Draw.rect(block.teamRegions[team.uid], x, y);
+            if(block.teamRegions[team.id] == block.teamRegion) Draw.color(team.color);
+            Draw.rect(block.teamRegions[team.id], x, y);
             Draw.color();
         }
     }
diff --git a/core/src/mindustry/entities/comp/MinerComp.java b/core/src/mindustry/entities/comp/MinerComp.java
index ad614fa6a2..1797c8d9ee 100644
--- a/core/src/mindustry/entities/comp/MinerComp.java
+++ b/core/src/mindustry/entities/comp/MinerComp.java
@@ -95,7 +95,7 @@ abstract class MinerComp implements Itemsc, Posc, Teamc, Rotc, Drawc, Unitc{
         float ex = mineTile.worldx() + Mathf.sin(Time.time() + 48, swingScl, swingMag);
         float ey = mineTile.worldy() + Mathf.sin(Time.time() + 48, swingScl + 2f, swingMag);
 
-        Draw.z(Layer.power);
+        Draw.z(Layer.flyingUnit + 0.1f);
 
         Draw.color(Color.lightGray, Color.white, 1f - flashScl + Mathf.absin(Time.time(), 0.5f, flashScl));
 
diff --git a/core/src/mindustry/game/DefaultWaves.java b/core/src/mindustry/game/DefaultWaves.java
index eac0714591..426bc75396 100644
--- a/core/src/mindustry/game/DefaultWaves.java
+++ b/core/src/mindustry/game/DefaultWaves.java
@@ -157,7 +157,7 @@ public class DefaultWaves{
                 spacing = 3;
             }},
 
-            new SpawnGroup(UnitTypes.chaosArray){{
+            new SpawnGroup(UnitTypes.siegeArray){{
                 begin = 41;
                 unitAmount = 1;
                 unitScaling = 1;
diff --git a/core/src/mindustry/game/Rules.java b/core/src/mindustry/game/Rules.java
index f41a5bc6e0..83b0c67e6a 100644
--- a/core/src/mindustry/game/Rules.java
+++ b/core/src/mindustry/game/Rules.java
@@ -134,16 +134,16 @@ public class Rules{
         final TeamRule[] values = new TeamRule[Team.all.length];
 
         public TeamRule get(Team team){
-            TeamRule out = values[team.uid];
-            if(out == null) values[team.uid] = (out = new TeamRule());
+            TeamRule out = values[team.id];
+            if(out == null) values[team.id] = (out = new TeamRule());
             return out;
         }
 
         @Override
         public void write(Json json){
             for(Team team : Team.all){
-                if(values[team.uid] != null){
-                    json.writeValue(team.uid + "", values[team.uid], TeamRule.class);
+                if(values[team.id] != null){
+                    json.writeValue(team.id + "", values[team.id], TeamRule.class);
                 }
             }
         }
diff --git a/core/src/mindustry/game/Team.java b/core/src/mindustry/game/Team.java
index 0c3f4d391e..ec2e437f61 100644
--- a/core/src/mindustry/game/Team.java
+++ b/core/src/mindustry/game/Team.java
@@ -4,7 +4,6 @@ import arc.*;
 import arc.graphics.*;
 import arc.math.*;
 import arc.struct.*;
-import arc.util.*;
 import arc.util.ArcAnnotate.*;
 import mindustry.game.Rules.*;
 import mindustry.game.Teams.*;
@@ -14,8 +13,7 @@ import mindustry.world.blocks.storage.CoreBlock.*;
 import static mindustry.Vars.*;
 
 public class Team implements Comparable<Team>{
-    public final byte id;
-    public final int uid;
+    public final int id;
     public final Color color;
     public final Color[] palette;
     public boolean hasPalette;
@@ -52,12 +50,10 @@ public class Team implements Comparable<Team>{
     protected Team(int id, String name, Color color){
         this.name = name;
         this.color = color;
-        this.id = (byte)id;
+        this.id = id;
 
-        int us = Pack.u(this.id);
-        uid = us;
-        if(us < 6) baseTeams[us] = this;
-        all[us] = this;
+        if(id < 6) baseTeams[id] = this;
+        all[id] = this;
 
         palette = new Color[3];
         palette[0] = color;
diff --git a/core/src/mindustry/game/Teams.java b/core/src/mindustry/game/Teams.java
index 2327e1c0d2..592aa9d444 100644
--- a/core/src/mindustry/game/Teams.java
+++ b/core/src/mindustry/game/Teams.java
@@ -62,10 +62,10 @@ public class Teams{
 
     /** Returns team data by type. */
     public TeamData get(Team team){
-        if(map[team.uid] == null){
-            map[team.uid] = new TeamData(team);
+        if(map[team.id] == null){
+            map[team.id] = new TeamData(team);
         }
-        return map[team.uid];
+        return map[team.id];
     }
 
     public Seq<CoreEntity> playerCores(){
diff --git a/core/src/mindustry/io/SaveVersion.java b/core/src/mindustry/io/SaveVersion.java
index 3caee54d27..c2e4ce88e1 100644
--- a/core/src/mindustry/io/SaveVersion.java
+++ b/core/src/mindustry/io/SaveVersion.java
@@ -98,7 +98,7 @@ public abstract class SaveVersion extends SaveFileReader{
             "viewpos", Tmp.v1.set(player == null ? Vec2.ZERO : player).toString(),
             "controlledType", headless || control.input.controlledType == null ? "null" : control.input.controlledType.name,
             "nocores", state.rules.defaultTeam.cores().isEmpty(),
-            "playerteam", player == null ? state.rules.defaultTeam.uid : player.team().uid
+            "playerteam", player == null ? state.rules.defaultTeam.id : player.team().id
         ).merge(tags));
     }
 
@@ -119,7 +119,7 @@ public abstract class SaveVersion extends SaveFileReader{
             player.set(Tmp.v1);
 
             control.input.controlledType = content.getByName(ContentType.unit, map.get("controlledType", "<none>"));
-            Team team = Team.get(map.getInt("playerteam", state.rules.defaultTeam.uid));
+            Team team = Team.get(map.getInt("playerteam", state.rules.defaultTeam.id));
             if(!net.client() && team != Team.derelict){
                 player.team(team);
             }
diff --git a/core/src/mindustry/world/Block.java b/core/src/mindustry/world/Block.java
index d6a2333578..865d8dfc85 100644
--- a/core/src/mindustry/world/Block.java
+++ b/core/src/mindustry/world/Block.java
@@ -631,7 +631,7 @@ public class Block extends UnlockableContent{
         //load specific team regions
         teamRegions = new TextureRegion[Team.all.length];
         for(Team team : Team.all){
-            teamRegions[team.uid] = teamRegion.found() ? Core.atlas.find(name + "-team-" + team.name, teamRegion) : teamRegion;
+            teamRegions[team.id] = teamRegion.found() ? Core.atlas.find(name + "-team-" + team.name, teamRegion) : teamRegion;
         }
     }
 
diff --git a/core/src/mindustry/world/Tile.java b/core/src/mindustry/world/Tile.java
index 371e522a40..2406f4c269 100644
--- a/core/src/mindustry/world/Tile.java
+++ b/core/src/mindustry/world/Tile.java
@@ -171,7 +171,7 @@ public class Tile implements Position, QuadTreeObject, Displayable{
         return build == null ? y : build.tile.y;
     }
 
-    public byte getTeamID(){
+    public int getTeamID(){
         return team().id;
     }