Only sync projectiles and future synced effects.

OpenRA.Mods.Common/Projectiles/Missile.cs

@@ -141,11 +141,11 @@ namespace OpenRA.Mods.Common.Projectiles
 			"not trigger fast enough, causing the missile to fly past the target.")]
 		public readonly WDist CloseEnough = new WDist(298);
 
-		public IEffect Create(ProjectileArgs args) { return new Missile(this, args); }
+		public IProjectile Create(ProjectileArgs args) { return new Missile(this, args); }
 	}
 
 	// TODO: double check square roots!!!
-	public class Missile : IEffect, ISync
+	public class Missile : IProjectile, ISync
 	{
 		enum States
 		{