diff --git a/OpenRA.Game/Traits/World/Shroud.cs b/OpenRA.Game/Traits/World/Shroud.cs
index d82cdabeb5..b80596d14f 100644
--- a/OpenRA.Game/Traits/World/Shroud.cs
+++ b/OpenRA.Game/Traits/World/Shroud.cs
@@ -170,6 +170,16 @@ namespace OpenRA.Traits
 
 			Dirty();
 		}
+		
+		public void ExploreAll(World world)
+		{
+			for (int i = map.TopLeft.X; i < map.BottomRight.X; i++)
+				for (int j = map.TopLeft.Y; j < map.BottomRight.Y; j++)
+					exploredCells[i, j] = true;
+			exploredBounds = new Rectangle(world.Map.TopLeft.X,world.Map.TopLeft.Y,world.Map.Width,world.Map.Height);
+
+			Dirty();
+		}
 
 		public void ResetExploration()		// for `hide map` crate
 		{
diff --git a/OpenRA.Mods.RA/Crate.cs b/OpenRA.Mods.RA/Crate.cs
index cbad36c3bd..6189d750a1 100644
--- a/OpenRA.Mods.RA/Crate.cs
+++ b/OpenRA.Mods.RA/Crate.cs
@@ -15,10 +15,8 @@ using OpenRA.Traits;
 
 /*
  * Crates left to implement:
-Cloak=0,STEALTH2                ; enable cloaking on nearby objects
 HealBase=1,INVUN                ; all buildings to full strength
 ICBM=1,MISSILE2                 ; nuke missile one time shot
-Reveal=1,EARTH                  ; reveal entire radar map
 Sonar=3,SONARBOX                ; one time sonar pulse
 Squad=20,NONE                   ; squad of random infantry
 Unit=20,NONE                    ; vehicle
diff --git a/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj b/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
index de6aeeadfe..475dd1b1e8 100644
--- a/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
+++ b/OpenRA.Mods.RA/OpenRA.Mods.RA.csproj
@@ -233,6 +233,7 @@
     <Compile Include="ActorLostNotification.cs" />
     <Compile Include="AppearsOnRadar.cs" />
     <Compile Include="ColorPickerPaletteModifier.cs" />
+    <Compile Include="Crates\RevealMapCrateAction.cs" />
   </ItemGroup>
   <ItemGroup>
     <ProjectReference Include="..\OpenRA.FileFormats\OpenRA.FileFormats.csproj">
diff --git a/mods/cnc/system.yaml b/mods/cnc/system.yaml
index 871ddb9dee..0b42dffe2e 100644
--- a/mods/cnc/system.yaml
+++ b/mods/cnc/system.yaml
@@ -154,6 +154,9 @@ CRATE:
 		Amount: 1000
 		SelectionShares: 50
 		Effect: dollar
+	RevealMapCrateAction:
+		SelectionShares: 1
+		Effect: reveal-map
 	HideMapCrateAction:
 		SelectionShares: 5
 		Effect: hide-map
diff --git a/mods/ra/system.yaml b/mods/ra/system.yaml
index 576889f487..059853f5c4 100644
--- a/mods/ra/system.yaml
+++ b/mods/ra/system.yaml
@@ -224,6 +224,9 @@ CRATE:
 	HideMapCrateAction:
 		SelectionShares: 5
 		Effect: hide-map
+	RevealMapCrateAction:
+		SelectionShares: 1
+		Effect: reveal-map
 	SupportPowerCrateAction@parabombs:
 		Power: AirstrikePower
 		SelectionShares: 5