Once in a while the Rocket Barrage will simply fail to deploy. It will be called in and be confirmed, you'll hear the rockets being fired in the distance but they never arrive. I have no idea what causes it but it is super annoying to have your most powerful ordinance bug out, often.
@raibi This is fair but this also happens when not sending rockets into a restricted area. Also if by mistake I did send them into such an area why then confirm the barrage and make all the appropriate sounds of rockets being fired into the air but no aftermath such as landing and explosions etc.. Just tossing that out there!