When Q is explaining the weapons on Little Nellie, the mini-copter, to 007 he reverses the description of two main ones. He points to the rocket pods and says they only fire one on each side, obviously referring to the air to air missiles. He then points to the two missiles and says they fire 60 per minute when there are only two, again referring to the rocket pods. This can be verified by watching the labels on the buttons of the weapons when 007 pushes them.