diff --git a/OpenRA.Game/Traits/Player/EvaAlerts.cs b/OpenRA.Game/Traits/Player/EvaAlerts.cs
index 8c4de05fb3..e88b409b97 100644
--- a/OpenRA.Game/Traits/Player/EvaAlerts.cs
+++ b/OpenRA.Game/Traits/Player/EvaAlerts.cs
@@ -43,7 +43,6 @@ namespace OpenRA.Traits
 		public readonly string UnitReadyAudio = "unitrdy1.aud";
 		public readonly string OnHoldAudio = "onhold1.aud";
 		public readonly string CancelledAudio = "cancld1.aud";
-		public readonly string ClickAudio = "ramenu1.aud";
 		public readonly string NewOptions = "newopt1.aud";
 		
 		// For manual powerup/down in ra-ng
@@ -57,6 +56,9 @@ namespace OpenRA.Traits
 		public readonly string NavalUnitLost = "navylst1.aud";
 		public readonly string PrimaryBuildingSelected = "pribldg1.aud";
 		public readonly string CreditsStolen = "credit1.aud";
+		
+		// Special powers
+		public readonly string AbilityInsufficientPower = "nopowr1.aud";
 	}
 
 	public class EvaAlerts {}
diff --git a/OpenRA.Game/Traits/SupportPower.cs b/OpenRA.Game/Traits/SupportPower.cs
index 4eae60b823..a6b393ba01 100644
--- a/OpenRA.Game/Traits/SupportPower.cs
+++ b/OpenRA.Game/Traits/SupportPower.cs
@@ -136,14 +136,12 @@ namespace OpenRA.Traits
 		public void Activate()
 		{
 			if (!IsAvailable || !IsReady)
-			{
-				Sound.Play("briefing.aud");
 				return;
-			}
 
 			if (Info.RequiresPower && !IsPowered())
 			{
-				Sound.Play("nopowr1.aud");
+				var eva = Owner.World.WorldActor.Info.Traits.Get<EvaAlertsInfo>();
+				Sound.Play(eva.AbilityInsufficientPower);
 				return;
 			}
 
diff --git a/mods/cnc/system.yaml b/mods/cnc/system.yaml
index 3e407d15be..4e07a75f1b 100644
--- a/mods/cnc/system.yaml
+++ b/mods/cnc/system.yaml
@@ -6,7 +6,7 @@ Player:
 	TechTreeCache:
 	NukePower:
 		Image: atomicnh
-		ChargeTime: 13
+		ChargeTime: 5
 		Description: Atom Bomb
 		LongDesc: Launches a nuclear missile at a target location.
 		Prerequisites: TMPL
@@ -27,8 +27,8 @@ Player:
 		LaunchSound: ion1.aud
 		SelectTargetSound: select1.aud
 	AirstrikePower:
-		Image: a10icnh
-		ChargeTime: 8
+		Image: bombicnh
+		ChargeTime: 4
 		Description: Airstrike
 		LongDesc: Delivers a load of napalm on your target.
 		Prerequisites: hq
@@ -243,6 +243,7 @@ World:
 		UnitLost: unitlost.aud
 		NavalUnitLost: unitlost.aud
 		PrimaryBuildingSelected: pribldg1.aud
+		AbilityInsufficientPower: nopower1.aud
 	SpatialBins:
 		BinSize: 4
 	Shroud:
\ No newline at end of file