Unhardcode voice/order interaction; reimplement for move and attack

OpenRA.Mods.RA/AttackBase.cs

@@ -35,7 +35,7 @@ namespace OpenRA.Mods.RA
 		public virtual object Create(ActorInitializer init) { return new AttackBase(init.self); }
 	}
 
-	public class AttackBase : IIssueOrder, IResolveOrder, ITick, IExplodeModifier, IOrderCursor
+	public class AttackBase : IIssueOrder, IResolveOrder, ITick, IExplodeModifier, IOrderCursor, IOrderVoice
 	{
 		public Target target;
 
@@ -263,6 +263,11 @@ namespace OpenRA.Mods.RA
 			}
 		}
 		
+		public string VoicePhraseForOrder(Actor self, Order order)
+		{
+			return (order.OrderString == "Attack" || order.OrderString == "Heal") ? "Attack" : null;
+		}
+		
 		protected virtual void QueueAttack(Actor self, Order order)
 		{
 			/* todo: choose the appropriate weapon, when only one works against this target */