This is second in a series that reads like Gale is essentially trying to replicate the style of the Sharpe books (in a different age). Jack Steel, his hero, is similar to Sharpe in many ways although from a middle-class family rather than a workhouse orphan. He also predates Sharpe by a hundred years - this book is about Marlborough's campaign against Louis XIV in Belgium.
The story follows the historical military adventure formula, so there's not much unexpected in there. Gale writes well enough that this isn't a bad thing, and Steel has a streak of compassion (particularly when the city of Ostend is bombarded by the Royal Navy) that is unusual.
I'm interested to see where the series goes (and find that first novel).