diff --git a/OpenRa.Game/Bullet.cs b/OpenRa.Game/Bullet.cs
index c381c65e99..0eacf93c17 100644
--- a/OpenRa.Game/Bullet.cs
+++ b/OpenRa.Game/Bullet.cs
@@ -72,20 +72,36 @@ namespace OpenRa.Game
 			{
 				Game.world.AddFrameEndTask(w =>
 				{
-					w.Remove(this); 
+					w.Remove(this);
 
-					var isWater = Game.IsCellBuildable(
-						((1f / Game.CellSize) * Dest.ToFloat2()).ToInt2(), UnitMovementType.Float);
+					var targetTile = ((1f / Game.CellSize) * Dest.ToFloat2()).ToInt2();
+
+					var isWater = Game.IsWater(targetTile);
+					var hitWater = Game.IsCellBuildable(targetTile, UnitMovementType.Float);
 
 					if (Warhead.Explosion != 0)
-						w.Add(new Explosion(VisualDest, Warhead.Explosion, isWater));
+						w.Add(new Explosion(VisualDest, Warhead.Explosion, hitWater));
 
 					var impact = Warhead.ImpactSound;
-					if (isWater && Warhead.WaterImpactSound != null)
+					if (hitWater && Warhead.WaterImpactSound != null)
 						impact = Warhead.WaterImpactSound;
 
 					if (impact != null) 
 						Game.PlaySound(impact+ ".aud", false);
+
+					if (!isWater)
+						switch( Warhead.Explosion )		/* todo: push the scorch/crater behavior into data */
+						{
+							case 4:
+							case 5:
+								Smudge.AddSmudge(true, targetTile.X, targetTile.Y);
+								break;
+
+							case 3:
+							case 6:
+								Smudge.AddSmudge(false, targetTile.X, targetTile.Y);
+								break;
+						}
 				});
 
 				var maxSpread = GetMaximumSpread();
diff --git a/OpenRa.Game/Graphics/OverlayRenderer.cs b/OpenRa.Game/Graphics/OverlayRenderer.cs
index ad3a00efb1..0df11be438 100755
--- a/OpenRa.Game/Graphics/OverlayRenderer.cs
+++ b/OpenRa.Game/Graphics/OverlayRenderer.cs
@@ -33,8 +33,8 @@ namespace OpenRa.Game.Graphics
 			for (int i = 0; i < overlaySpriteNames.Length; i++)
 				overlaySprites[i] = SpriteSheetBuilder.LoadAllSprites(overlaySpriteNames[i], ".shp", ".tem", ".sno");
 
-			/* todo: add the rest of the smudge sprites */
-			smudgeSprites = new[] { "bib3", "bib2" }.SelectMany(
+			smudgeSprites = new[] { "bib3", "bib2", "sc1", "sc2", "sc3", "sc4", "sc5", "sc6",
+										"cr1", "cr2", "cr3", "cr4", "cr5", "cr6", }.SelectMany(
 				f => SpriteSheetBuilder.LoadAllSprites(f, ".shp", ".tem", ".sno")).ToArray();
 		}
 
diff --git a/OpenRa.Game/OpenRa.Game.csproj b/OpenRa.Game/OpenRa.Game.csproj
index 15aab4907a..97009a120c 100644
--- a/OpenRa.Game/OpenRa.Game.csproj
+++ b/OpenRa.Game/OpenRa.Game.csproj
@@ -91,6 +91,7 @@
     <Compile Include="PathSearch.cs" />
     <Compile Include="ProductionItem.cs" />
     <Compile Include="ReplayOrderSource.cs" />
+    <Compile Include="Smudge.cs" />
     <Compile Include="Support\Stopwatch.cs" />
     <Compile Include="Support\PerfHistory.cs" />
     <Compile Include="Traits\AcceptsOre.cs" />
diff --git a/OpenRa.Game/Smudge.cs b/OpenRa.Game/Smudge.cs
new file mode 100644
index 0000000000..85109fd76f
--- /dev/null
+++ b/OpenRa.Game/Smudge.cs
@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+
+namespace OpenRa.Game
+{
+	static class Smudge
+	{
+		const int firstScorch = 11;
+		const int firstCrater = 17;
+		const int framesPerCrater = 5;
+
+		public static void AddSmudge(bool isCrater, int x, int y)
+		{
+			var smudge = Rules.Map.MapTiles[x, y].smudge;
+			if (smudge == 0)
+				Rules.Map.MapTiles[x, y].smudge = (byte) (isCrater
+					? (firstCrater + framesPerCrater * ChooseSmudge())
+					: (firstScorch + ChooseSmudge()));
+
+			if (smudge < firstCrater || !isCrater) return; /* bib or scorch; don't change */
+			
+			/* deepen the crater */
+			var amount = (smudge - firstCrater) % framesPerCrater;
+			if (amount < framesPerCrater - 1)
+				Rules.Map.MapTiles[x, y].smudge++;
+		}
+
+		static int lastSmudge = 0;
+		static int ChooseSmudge() { lastSmudge = (lastSmudge + 1) % 6; return lastSmudge; }
+	}
+}