diff --git a/OpenRA.Mods.Common/Util.cs b/OpenRA.Mods.Common/Util.cs
index f2820bf75e..c1b8f33521 100644
--- a/OpenRA.Mods.Common/Util.cs
+++ b/OpenRA.Mods.Common/Util.cs
@@ -12,6 +12,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using OpenRA.GameRules;
 using OpenRA.Mods.Common.Traits;
 using OpenRA.Support;
 using OpenRA.Traits;
@@ -175,5 +176,18 @@ namespace OpenRA.Mods.Common
 
 			return world.SharedRandom.Next(range[0], range[1]);
 		}
+
+		// TODO: Investigate caching this or moving it to ActorMapInfo
+		public static WDist MinimumRequiredVictimScanRadius(Ruleset rules)
+		{
+			return rules.Actors.SelectMany(a => a.Value.TraitInfos<HealthInfo>()).Max(h => h.Shape.OuterRadius);
+		}
+
+		// TODO: Investigate caching this or moving it to ActorMapInfo
+		public static WDist MinimumRequiredBlockerScanRadius(Ruleset rules)
+		{
+			return rules.Actors.Where(a => a.Value.HasTraitInfo<IBlocksProjectilesInfo>())
+				.SelectMany(a => a.Value.TraitInfos<HealthInfo>()).Max(h => h.Shape.OuterRadius);
+		}
 	}
 }