Remove IFogVisibilityModifier.

OpenRA.Mods.Cnc/Traits/Infiltration/InfiltrateForExploration.cs

@@ -9,6 +9,7 @@
  */
 #endregion
 
+using System.Linq;
 using OpenRA.Mods.Common.Traits;
 using OpenRA.Traits;
 
@@ -22,7 +23,9 @@ namespace OpenRA.Mods.Cnc.Traits
 		void INotifyInfiltrated.Infiltrated(Actor self, Actor infiltrator)
 		{
 			infiltrator.Owner.Shroud.Explore(self.Owner.Shroud);
-			if (!self.Owner.HasFogVisibility)
+			var preventReset = self.Owner.PlayerActor.TraitsImplementing<IPreventsShroudReset>()
+				.Any(p => p.PreventShroudReset(self));
+			if (!preventReset)
 				self.Owner.Shroud.ResetExploration();
 		}
 	}