 Later that year, they were sent to be part of the disastrous expedition against the American Army at New Orleans, in Louisiana.By the time of the Waterloo campaign on 30 April 1815, the command of the 2nd Rocket Troop was formally taken over by Captain Whinyates.Wellington remained averse to rockets, so Whinyates took just 800 rockets into the field, as well as five 6-pounder guns; it would appear that the rockets replaced the usual howitzer in the structure of the troop.