separate spy disguise and infiltrate

- add thief to classic-ra & monster tank madness
- remove crude workarounds for allies04

OpenRA.Mods.RA/Missions/Allies04Script.cs

@@ -410,7 +410,7 @@ namespace OpenRA.Mods.RA.Missions
 			};
 
 			lab = actors["Lab"];
-			lab.AddTrait(new InfiltrateAction(OnLabInfiltrated));
+			lab.AddTrait(new InfiltrateForMissionObjective(OnLabInfiltrated));
 			lab.AddTrait(new TransformedAction(self => lab = self));
 
 			reinforcementsEntryPoint = actors["ReinforcementsEntryPoint"];
@@ -456,13 +456,17 @@ namespace OpenRA.Mods.RA.Missions
 		public object Create(ActorInitializer init) { return new Allies04Hijackable(init.self); }
 	}
 
-	class Allies04Hijackable : IAcceptSpy, INotifyPassengerExited
+	class Allies04Hijackable : IAcceptInfiltrator, INotifyPassengerExited
 	{
 		public Player OldOwner;
 
+		void OnTruckHijacked(Actor spy) { }
+
 		public Allies04Hijackable(Actor self)
 		{
 			OldOwner = self.Owner;
+
+			self.AddTrait(new InfiltrateForMissionObjective(OnTruckHijacked));
 		}
 
 		public void OnInfiltrate(Actor self, Actor spy)

OpenRA.Mods.RA/Missions/MissionUtils.cs

@@ -230,11 +230,11 @@ namespace OpenRA.Mods.RA.Missions
 		}
 	}
 
-	class InfiltrateAction : IAcceptSpy
+	class InfiltrateForMissionObjective : IAcceptInfiltrator
 	{
 		Action<Actor> a;
 
-		public InfiltrateAction(Action<Actor> a)
+		public InfiltrateForMissionObjective(Action<Actor> a)
 		{
 			this.a = a;
 		}

OpenRA.Mods.RA/Missions/MonsterTankMadnessScript.cs

@@ -329,7 +329,7 @@ namespace OpenRA.Mods.RA.Missions
 			world.CreateActor("camera", greece, provingGroundsCameraPoint.Location, null);
 
 			superTankDome = actors["SuperTankDome"];
-			superTankDome.AddTrait(new InfiltrateAction(OnSuperTankDomeInfiltrated));
+			superTankDome.AddTrait(new InfiltrateForMissionObjective(OnSuperTankDomeInfiltrated));
 			superTankDome.AddTrait(new TransformedAction(self => superTankDome = self));
 
 			Game.MoveViewport(startEntryPoint.Location.ToFloat2());