New crate type 'HealUnitsCrateAction' which heals all of the units that the collecting player has. Very rare. New 'ContainsCrate' trait which goes along with this - could be used to hide crates inside churches for example like in the original RA missions.

OpenRA.Mods.RA/ContainsCrate.cs

@@ -0,0 +1,29 @@
+#region Copyright & License Information
+/*
+ * Copyright 2007-2011 The OpenRA Developers (see AUTHORS)
+ * This file is part of OpenRA, which is free software. It is made
+ * available to you under the terms of the GNU General Public License
+ * as published by the Free Software Foundation. For more information,
+ * see COPYING.
+ */
+#endregion
+
+using OpenRA.FileFormats;
+using OpenRA.Traits;
+
+namespace OpenRA.Mods.RA
+{
+	public class ContainsCrateInfo : TraitInfo<ContainsCrate> { }
+
+	public class ContainsCrate : INotifyKilled
+	{
+		public void Killed(Actor self, AttackInfo e)
+		{
+			self.World.AddFrameEndTask(w => w.CreateActor("crate", new TypeDictionary
+			{
+				new LocationInit(self.Location),
+				new OwnerInit(self.World.WorldActor.Owner),
+			}));
+		}
+	}
+}