diff --git a/OpenRA.Mods.Common/Projectiles/Bullet.cs b/OpenRA.Mods.Common/Projectiles/Bullet.cs
index bc4f77413f..47435a3567 100644
--- a/OpenRA.Mods.Common/Projectiles/Bullet.cs
+++ b/OpenRA.Mods.Common/Projectiles/Bullet.cs
@@ -103,20 +103,19 @@ namespace OpenRA.Mods.Common.Projectiles
 		readonly BulletInfo info;
 		readonly ProjectileArgs args;
 		readonly Animation anim;
-		[Sync] readonly WAngle angle;
-		[Sync] readonly WDist speed;
+		readonly int facing;
+		readonly WAngle angle;
+		readonly WDist speed;
+		readonly string trailPalette;
+		readonly ContrailRenderable contrail;
 
-		ContrailRenderable contrail;
-		string trailPalette;
+		[Sync]
+		WPos pos, target, source;
 
-		[Sync] WPos pos, target, source;
 		int length;
-		[Sync] int facing;
 		int ticks, smokeTicks;
 		int remainingBounces;
 
-		public Actor SourceActor { get { return args.SourceActor; } }
-
 		public Bullet(BulletInfo info, ProjectileArgs args)
 		{
 			this.info = info;
diff --git a/OpenRA.Mods.Common/Projectiles/GravityBomb.cs b/OpenRA.Mods.Common/Projectiles/GravityBomb.cs
index a55c513d26..d2e29d12d3 100644
--- a/OpenRA.Mods.Common/Projectiles/GravityBomb.cs
+++ b/OpenRA.Mods.Common/Projectiles/GravityBomb.cs
@@ -51,8 +51,10 @@ namespace OpenRA.Mods.Common.Projectiles
 		readonly Animation anim;
 		readonly ProjectileArgs args;
 		readonly WVec acceleration;
-		[Sync] WVec velocity;
-		[Sync] WPos pos;
+		WVec velocity;
+
+		[Sync]
+		WPos pos;
 
 		public GravityBomb(GravityBombInfo info, ProjectileArgs args)
 		{
diff --git a/OpenRA.Mods.Common/Projectiles/InstantHit.cs b/OpenRA.Mods.Common/Projectiles/InstantHit.cs
index 670b4783ee..f26ffa4777 100644
--- a/OpenRA.Mods.Common/Projectiles/InstantHit.cs
+++ b/OpenRA.Mods.Common/Projectiles/InstantHit.cs
@@ -43,20 +43,18 @@ namespace OpenRA.Mods.Common.Projectiles
 		readonly InstantHitInfo info;
 
 		Target target;
-		WPos source;
 
 		public InstantHit(InstantHitInfo info, ProjectileArgs args)
 		{
 			this.args = args;
 			this.info = info;
-			source = args.Source;
 
 			if (args.Weapon.TargetActorCenter)
 				target = args.GuidedTarget;
 			else if (info.Inaccuracy.Length > 0)
 			{
 				var inaccuracy = Util.ApplyPercentageModifiers(info.Inaccuracy.Length, args.InaccuracyModifiers);
-				var maxOffset = inaccuracy * (args.PassiveTarget - source).Length / args.Weapon.Range.Length;
+				var maxOffset = inaccuracy * (args.PassiveTarget - args.Source).Length / args.Weapon.Range.Length;
 				target = Target.FromPos(args.PassiveTarget + WVec.FromPDF(args.SourceActor.World.SharedRandom, 2) * maxOffset / 1024);
 			}
 			else
@@ -67,7 +65,7 @@ namespace OpenRA.Mods.Common.Projectiles
 		{
 			// Check for blocking actors
 			WPos blockedPos;
-			if (info.Blockable && BlocksProjectiles.AnyBlockingActorsBetween(world, source, target.CenterPosition,
+			if (info.Blockable && BlocksProjectiles.AnyBlockingActorsBetween(world, args.Source, target.CenterPosition,
 				info.Width, out blockedPos))
 			{
 				target = Target.FromPos(blockedPos);
diff --git a/OpenRA.Mods.Common/Projectiles/LaserZap.cs b/OpenRA.Mods.Common/Projectiles/LaserZap.cs
index 789f921bb9..ecbf0ec43e 100644
--- a/OpenRA.Mods.Common/Projectiles/LaserZap.cs
+++ b/OpenRA.Mods.Common/Projectiles/LaserZap.cs
@@ -103,12 +103,16 @@ namespace OpenRA.Mods.Common.Projectiles
 		readonly Animation hitanim;
 		readonly Color color;
 		readonly Color secondaryColor;
-		int ticks = 0;
+		readonly bool hasLaunchEffect;
+		int ticks;
 		int interval;
 		bool showHitAnim;
-		bool hasLaunchEffect;
-		[Sync] WPos target;
-		[Sync] WPos source;
+
+		[Sync]
+		WPos target;
+
+		[Sync]
+		WPos source;
 
 		public LaserZap(LaserZapInfo info, ProjectileArgs args, Color color)
 		{
diff --git a/OpenRA.Mods.Common/Projectiles/Missile.cs b/OpenRA.Mods.Common/Projectiles/Missile.cs
index ad1621806f..0810b70064 100644
--- a/OpenRA.Mods.Common/Projectiles/Missile.cs
+++ b/OpenRA.Mods.Common/Projectiles/Missile.cs
@@ -178,7 +178,7 @@ namespace OpenRA.Mods.Common.Projectiles
 
 		States state;
 		bool targetPassedBy;
-		bool lockOn = false;
+		bool lockOn;
 		bool allowPassBy; // TODO: use this also with high minimum launch angle settings
 
 		WPos targetPosition;
@@ -187,7 +187,9 @@ namespace OpenRA.Mods.Common.Projectiles
 		WVec tarVel;
 		WVec predVel;
 
-		[Sync] WPos pos;
+		[Sync]
+		WPos pos;
+
 		WVec velocity;
 		int speed;
 		int loopRadius;
@@ -195,11 +197,12 @@ namespace OpenRA.Mods.Common.Projectiles
 		WDist rangeLimit;
 
 		int renderFacing;
-		[Sync] int hFacing;
-		[Sync] int vFacing;
 
-		public Actor SourceActor { get { return args.SourceActor; } }
-		public Target GuidedTarget { get { return args.GuidedTarget; } }
+		[Sync]
+		int hFacing;
+
+		[Sync]
+		int vFacing;
 
 		public Missile(MissileInfo info, ProjectileArgs args)
 		{
diff --git a/OpenRA.Mods.Common/Projectiles/Railgun.cs b/OpenRA.Mods.Common/Projectiles/Railgun.cs
index dc9fad0a1a..0701cef67b 100644
--- a/OpenRA.Mods.Common/Projectiles/Railgun.cs
+++ b/OpenRA.Mods.Common/Projectiles/Railgun.cs
@@ -106,7 +106,7 @@ namespace OpenRA.Mods.Common.Projectiles
 		public readonly Color BeamColor;
 		public readonly Color HelixColor;
 
-		int ticks = 0;
+		int ticks;
 		bool animationComplete;
 		WPos target;