Re: Novels with HUGE battles?
I don't know if it fits your definition of "large scale" or not, but "The Wounded Sky" has an excellent battle scene between the Enterprise and a squadron of Klingons, at least 7 or 8 ships if memory serves. The Klingons do all of the actual shooting but (spoiler alert) the Big E comes out on top.
"A mind needs books the way a sword needs a whetstone." - Tyrion Lannister, A Game of Thrones