diff --git a/OpenRA.Mods.Common/Activities/CaptureActor.cs b/OpenRA.Mods.Common/Activities/CaptureActor.cs
index ca9b6e7cf8..a8bec859a4 100644
--- a/OpenRA.Mods.Common/Activities/CaptureActor.cs
+++ b/OpenRA.Mods.Common/Activities/CaptureActor.cs
@@ -16,15 +16,19 @@ namespace OpenRA.Mods.Common.Activities
 	public class CaptureActor : Enter
 	{
 		readonly Actor actor;
+		readonly Building building;
 		readonly Capturable capturable;
 		readonly CapturesInfo capturesInfo;
+		readonly Health health;
 
 		public CaptureActor(Actor self, Actor target)
 			: base(self, target)
 		{
 			actor = target;
+			building = actor.TraitOrDefault<Building>();
 			capturesInfo = self.Info.Traits.Get<CapturesInfo>();
 			capturable = target.Trait<Capturable>();
+			health = actor.Trait<Health>();
 		}
 
 		protected override bool CanReserve(Actor self)
@@ -37,20 +41,17 @@ namespace OpenRA.Mods.Common.Activities
 			if (actor.IsDead || capturable.BeingCaptured)
 				return;
 
-			var b = actor.TraitOrDefault<Building>();
-			if (b != null && !b.Lock())
+			if (building != null && !building.Lock())
 				return;
 
 			self.World.AddFrameEndTask(w =>
 			{
-				if (b != null && b.Locked)
-					b.Unlock();
+				if (building != null && building.Locked)
+					building.Unlock();
 
 				if (actor.IsDead || capturable.BeingCaptured)
 					return;
 
-				var health = actor.Trait<Health>();
-
 				var lowEnoughHealth = health.HP <= capturable.Info.CaptureThreshold * health.MaxHP;
 				if (!capturesInfo.Sabotage || lowEnoughHealth || actor.Owner.NonCombatant)
 				{
@@ -61,8 +62,8 @@ namespace OpenRA.Mods.Common.Activities
 					foreach (var t in actor.TraitsImplementing<INotifyCapture>())
 						t.OnCapture(actor, self, oldOwner, self.Owner);
 
-					if (b != null && b.Locked)
-						b.Unlock();
+					if (building != null && building.Locked)
+						building.Unlock();
 				}
 				else
 				{
diff --git a/OpenRA.Mods.Common/Activities/ExternalCaptureActor.cs b/OpenRA.Mods.Common/Activities/ExternalCaptureActor.cs
index ace8a01f15..ae290c3d96 100644
--- a/OpenRA.Mods.Common/Activities/ExternalCaptureActor.cs
+++ b/OpenRA.Mods.Common/Activities/ExternalCaptureActor.cs
@@ -17,17 +17,24 @@ namespace OpenRA.Mods.Common.Activities
 {
 	class ExternalCaptureActor : Activity
 	{
-		Target target;
+		readonly ExternalCapturable capturable;
+		readonly ExternalCapturesInfo capturesInfo;
+		readonly Mobile mobile;
+		readonly Target target;
 
-		public ExternalCaptureActor(Target target) { this.target = target; }
+		public ExternalCaptureActor(Actor self, Target target)
+		{
+			this.target = target;
+			capturable = target.Actor.Trait<ExternalCapturable>();
+			capturesInfo = self.Info.Traits.Get<ExternalCapturesInfo>();
+			mobile = self.Trait<Mobile>();
+		}
 
 		public override Activity Tick(Actor self)
 		{
 			if (target.Type != TargetType.Actor)
 				return NextActivity;
 
-			var capturable = target.Actor.Trait<ExternalCapturable>();
-
 			if (IsCanceled || !self.IsInWorld || self.IsDead || !target.IsValidFor(self))
 			{
 				if (capturable.CaptureInProgress)
@@ -36,7 +43,6 @@ namespace OpenRA.Mods.Common.Activities
 				return NextActivity;
 			}
 
-			var mobile = self.Trait<Mobile>();
 			var nearest = target.Actor.OccupiesSpace.NearestCellTo(mobile.ToCell);
 
 			if ((nearest - mobile.ToCell).LengthSquared > 2)
@@ -56,8 +62,6 @@ namespace OpenRA.Mods.Common.Activities
 
 				if (capturable.CaptureProgressTime == capturable.Info.CaptureCompleteTime * 25)
 				{
-					var capturesInfo = self.Info.Traits.Get<ExternalCapturesInfo>();
-
 					self.World.AddFrameEndTask(w =>
 					{
 						if (target.Actor.IsDead)
diff --git a/OpenRA.Mods.Common/Activities/Sell.cs b/OpenRA.Mods.Common/Activities/Sell.cs
index c44127726c..edfafa3a72 100644
--- a/OpenRA.Mods.Common/Activities/Sell.cs
+++ b/OpenRA.Mods.Common/Activities/Sell.cs
@@ -17,16 +17,23 @@ namespace OpenRA.Mods.Common.Activities
 {
 	class Sell : Activity
 	{
+		readonly Health health;
+		readonly SellableInfo sellableInfo;
+		readonly PlayerResources playerResources;
+
+		public Sell(Actor self)
+		{
+			health = self.TraitOrDefault<Health>();
+			sellableInfo = self.Info.Traits.Get<SellableInfo>();
+			playerResources = self.Owner.PlayerActor.Trait<PlayerResources>();
+		}
+
 		public override Activity Tick(Actor self)
 		{
-			var h = self.TraitOrDefault<Health>();
-			var si = self.Info.Traits.Get<SellableInfo>();
-			var pr = self.Owner.PlayerActor.Trait<PlayerResources>();
-
 			var cost = self.GetSellValue();
 
-			var refund = (cost * si.RefundPercent * (h == null ? 1 : h.HP)) / (100 * (h == null ? 1 : h.MaxHP));
-			pr.GiveCash(refund);
+			var refund = (cost * sellableInfo.RefundPercent * (health == null ? 1 : health.HP)) / (100 * (health == null ? 1 : health.MaxHP));
+			playerResources.GiveCash(refund);
 
 			foreach (var ns in self.TraitsImplementing<INotifySold>())
 				ns.Sold(self);
diff --git a/OpenRA.Mods.Common/Traits/Burns.cs b/OpenRA.Mods.Common/Traits/Burns.cs
index f464239555..a68c54497b 100644
--- a/OpenRA.Mods.Common/Traits/Burns.cs
+++ b/OpenRA.Mods.Common/Traits/Burns.cs
@@ -25,8 +25,8 @@ namespace OpenRA.Mods.Common.Traits
 
 	class Burns : ITick, ISync
 	{
+		readonly BurnsInfo info;
 		[Sync] int ticks;
-		BurnsInfo info;
 
 		public Burns(Actor self, BurnsInfo info)
 		{
diff --git a/OpenRA.Mods.Common/Traits/ExternalCapturable.cs b/OpenRA.Mods.Common/Traits/ExternalCapturable.cs
index f046deaecd..7160af26e7 100644
--- a/OpenRA.Mods.Common/Traits/ExternalCapturable.cs
+++ b/OpenRA.Mods.Common/Traits/ExternalCapturable.cs
@@ -51,21 +51,20 @@ namespace OpenRA.Mods.Common.Traits
 
 	public class ExternalCapturable : ITick
 	{
+		readonly Building building;
 		[Sync] public int CaptureProgressTime = 0;
 		[Sync] public Actor Captor;
-		private Actor self;
 		public ExternalCapturableInfo Info;
 		public bool CaptureInProgress { get { return Captor != null; } }
 
 		public ExternalCapturable(Actor self, ExternalCapturableInfo info)
 		{
-			this.self = self;
 			Info = info;
+			building = self.TraitOrDefault<Building>();
 		}
 
 		public void BeginCapture(Actor captor)
 		{
-			var building = self.TraitOrDefault<Building>();
 			if (building != null)
 				building.Lock();
 
@@ -74,7 +73,6 @@ namespace OpenRA.Mods.Common.Traits
 
 		public void EndCapture()
 		{
-			var building = self.TraitOrDefault<Building>();
 			if (building != null)
 				building.Unlock();
 
diff --git a/OpenRA.Mods.Common/Traits/ExternalCaptures.cs b/OpenRA.Mods.Common/Traits/ExternalCaptures.cs
index a40523393a..cd5302fe97 100644
--- a/OpenRA.Mods.Common/Traits/ExternalCaptures.cs
+++ b/OpenRA.Mods.Common/Traits/ExternalCaptures.cs
@@ -99,7 +99,7 @@ namespace OpenRA.Mods.Common.Traits
 				self.CancelActivity();
 
 			self.SetTargetLine(target, Color.Red);
-			self.QueueActivity(new ExternalCaptureActor(target));
+			self.QueueActivity(new ExternalCaptureActor(self, target));
 		}
 	}
 
diff --git a/OpenRA.Mods.Common/Traits/Infantry/ScaredyCat.cs b/OpenRA.Mods.Common/Traits/Infantry/ScaredyCat.cs
index 9caf2bece6..d52ddeed22 100644
--- a/OpenRA.Mods.Common/Traits/Infantry/ScaredyCat.cs
+++ b/OpenRA.Mods.Common/Traits/Infantry/ScaredyCat.cs
@@ -30,6 +30,7 @@ namespace OpenRA.Mods.Common.Traits
 	class ScaredyCat : ITick, INotifyIdle, INotifyDamage, INotifyAttack, ISpeedModifier, ISync, IRenderInfantrySequenceModifier
 	{
 		readonly ScaredyCatInfo info;
+		readonly Mobile mobile;
 		[Sync] readonly Actor self;
 		[Sync] int panicStartedTick;
 		bool Panicking { get { return panicStartedTick > 0; } }
@@ -41,6 +42,7 @@ namespace OpenRA.Mods.Common.Traits
 		{
 			this.self = self;
 			this.info = info;
+			mobile = self.Trait<Mobile>();
 		}
 
 		public void Panic()
@@ -68,7 +70,7 @@ namespace OpenRA.Mods.Common.Traits
 			if (!Panicking)
 				return;
 
-			self.Trait<Mobile>().Nudge(self, self, true);
+			mobile.Nudge(self, self, true);
 		}
 
 		public void Damaged(Actor self, AttackInfo e)
diff --git a/OpenRA.Mods.Common/Traits/Render/WithBuildingExplosion.cs b/OpenRA.Mods.Common/Traits/Render/WithBuildingExplosion.cs
index 262263375a..3e76028aa4 100644
--- a/OpenRA.Mods.Common/Traits/Render/WithBuildingExplosion.cs
+++ b/OpenRA.Mods.Common/Traits/Render/WithBuildingExplosion.cs
@@ -27,21 +27,22 @@ namespace OpenRA.Mods.Common.Traits
 		[Desc("Custom palette name")]
 		public readonly string Palette = "effect";
 
-		public object Create(ActorInitializer init) { return new WithBuildingExplosion(this); }
+		public object Create(ActorInitializer init) { return new WithBuildingExplosion(init.Self, this); }
 	}
 
 	class WithBuildingExplosion : INotifyKilled
 	{
 		WithBuildingExplosionInfo info;
+		BuildingInfo buildingInfo;
 
-		public WithBuildingExplosion(WithBuildingExplosionInfo info)
+		public WithBuildingExplosion(Actor self, WithBuildingExplosionInfo info)
 		{
 			this.info = info;
+			buildingInfo = self.Info.Traits.Get<BuildingInfo>();
 		}
 
 		public void Killed(Actor self, AttackInfo e)
 		{
-			var buildingInfo = self.Info.Traits.Get<BuildingInfo>();
 			var cells = FootprintUtils.UnpathableTiles(self.Info.Name, buildingInfo, self.Location);
 
 			if (info.Delay > 0)
diff --git a/OpenRA.Mods.Common/Traits/RepairableNear.cs b/OpenRA.Mods.Common/Traits/RepairableNear.cs
index d066bd4355..99ff27c40e 100644
--- a/OpenRA.Mods.Common/Traits/RepairableNear.cs
+++ b/OpenRA.Mods.Common/Traits/RepairableNear.cs
@@ -29,8 +29,14 @@ namespace OpenRA.Mods.Common.Traits
 	{
 		readonly Actor self;
 		readonly RepairableNearInfo info;
+		readonly IMove movement;
 
-		public RepairableNear(Actor self, RepairableNearInfo info) { this.self = self; this.info = info; }
+		public RepairableNear(Actor self, RepairableNearInfo info)
+		{
+			this.self = self;
+			this.info = info;
+			movement = self.Trait<IMove>();
+		}
 
 		public IEnumerable<IOrderTargeter> Orders
 		{
@@ -63,7 +69,6 @@ namespace OpenRA.Mods.Common.Traits
 		{
 			if (order.OrderString == "RepairNear" && CanRepairAt(order.TargetActor) && ShouldRepair())
 			{
-				var movement = self.Trait<IMove>();
 				var target = Target.FromOrder(self.World, order);
 
 				self.CancelActivity();
diff --git a/OpenRA.Mods.Common/Traits/Sellable.cs b/OpenRA.Mods.Common/Traits/Sellable.cs
index c2af65272f..393ab5e6ad 100644
--- a/OpenRA.Mods.Common/Traits/Sellable.cs
+++ b/OpenRA.Mods.Common/Traits/Sellable.cs
@@ -29,12 +29,18 @@ namespace OpenRA.Mods.Common.Traits
 	{
 		readonly Actor self;
 		readonly Lazy<Health> health;
+		readonly SellableInfo info;
+		readonly Building building;
+		readonly WithMakeAnimation makeAnimation;
 
 		public Sellable(Actor self, SellableInfo info)
 			: base(info)
 		{
 			this.self = self;
+			this.info = info;
 			health = Exts.Lazy(() => self.TraitOrDefault<Health>());
+			building = self.TraitOrDefault<Building>();
+			makeAnimation = self.TraitOrDefault<WithMakeAnimation>();
 		}
 
 		public void ResolveOrder(Actor self, Order order)
@@ -48,23 +54,21 @@ namespace OpenRA.Mods.Common.Traits
 			if (IsTraitDisabled)
 				return;
 
-			var building = self.TraitOrDefault<Building>();
 			if (building != null && !building.Lock())
 				return;
 
 			self.CancelActivity();
 
-			foreach (var s in Info.SellSounds)
+			foreach (var s in info.SellSounds)
 				Sound.PlayToPlayer(self.Owner, s, self.CenterPosition);
 
 			foreach (var ns in self.TraitsImplementing<INotifySold>())
 				ns.Selling(self);
 
-			var makeAnimation = self.TraitOrDefault<WithMakeAnimation>();
 			if (makeAnimation != null)
-				makeAnimation.Reverse(self, new Sell(), false);
+				makeAnimation.Reverse(self, new Sell(self), false);
 			else
-				self.QueueActivity(false, new Sell());
+				self.QueueActivity(false, new Sell(self));
 		}
 
 		public bool IsTooltipVisible(Player forPlayer)
@@ -78,7 +82,7 @@ namespace OpenRA.Mods.Common.Traits
 		{
 			get
 			{
-				var sellValue = self.GetSellValue() * Info.RefundPercent / 100;
+				var sellValue = self.GetSellValue() * info.RefundPercent / 100;
 				if (health.Value != null)
 				{
 					sellValue *= health.Value.HP;
diff --git a/OpenRA.Mods.Common/Traits/Transforms.cs b/OpenRA.Mods.Common/Traits/Transforms.cs
index 79faf49afc..9ad74b49cf 100644
--- a/OpenRA.Mods.Common/Traits/Transforms.cs
+++ b/OpenRA.Mods.Common/Traits/Transforms.cs
@@ -46,14 +46,18 @@ namespace OpenRA.Mods.Common.Traits
 	{
 		readonly Actor self;
 		readonly TransformsInfo info;
-		readonly BuildingInfo bi;
+		readonly Building building;
+		readonly BuildingInfo buildingInfo;
 		readonly string race;
+		readonly WithMakeAnimation makeAnimation;
 
 		public Transforms(ActorInitializer init, TransformsInfo info)
 		{
 			self = init.Self;
 			this.info = info;
-			bi = self.World.Map.Rules.Actors[info.IntoActor].Traits.GetOrDefault<BuildingInfo>();
+			buildingInfo = self.World.Map.Rules.Actors[info.IntoActor].Traits.GetOrDefault<BuildingInfo>();
+			building = self.TraitOrDefault<Building>();
+			makeAnimation = self.TraitOrDefault<WithMakeAnimation>();
 			race = init.Contains<RaceInit>() ? init.Get<RaceInit, string>() : self.Owner.Country.Race;
 		}
 
@@ -64,11 +68,10 @@ namespace OpenRA.Mods.Common.Traits
 
 		bool CanDeploy()
 		{
-			var b = self.TraitOrDefault<Building>();
-			if (b != null && b.Locked)
+			if (building != null && building.Locked)
 				return false;
 
-			return bi == null || self.World.CanPlaceBuilding(info.IntoActor, bi, self.Location + info.Offset, self);
+			return buildingInfo == null || self.World.CanPlaceBuilding(info.IntoActor, buildingInfo, self.Location + info.Offset, self);
 		}
 
 		public IEnumerable<IOrderTargeter> Orders
@@ -86,9 +89,7 @@ namespace OpenRA.Mods.Common.Traits
 
 		public void DeployTransform(bool queued)
 		{
-			var b = self.TraitOrDefault<Building>();
-
-			if (!CanDeploy() || (b != null && !b.Lock()))
+			if (!CanDeploy() || (building != null && !building.Lock()))
 			{
 				foreach (var s in info.NoTransformSounds)
 					Sound.PlayToPlayer(self.Owner, s);
@@ -116,7 +117,6 @@ namespace OpenRA.Mods.Common.Traits
 				Race = race
 			};
 
-			var makeAnimation = self.TraitOrDefault<WithMakeAnimation>();
 			if (makeAnimation != null)
 				makeAnimation.Reverse(self, transform);
 			else