The battle of Helm's Deep: All the Elves were killed?

[Kath]

alatar your points are all good and to be honest I never saw how PJ could consider Elf involvement as it would surely put the battle in the Rohirrim's favour. The only thing I can think of to explain the severe lack of dead orc bodies is that most of them were outside the walls, a place that was not watched by camera after the orcs broke in. It is quite possible that all those orcs killed by Elf arrows were there but because the camera wasn't on this area we didn't see them.

However I have no way of rationalising the switch from arrows to swords, to me it just seems plain stupid.