Insights for the Booksites - reading mostly for my own pleasure
Hard as you can features the romance between Shane McCallan and Sara aka Crystal Dean. I'm really liking all the characters including a dog named Eileen. These books are based on 5 men of the Special Forces Team who fought together in Afghanistan. Their leader betrayed them and they've made it their mission to uncover the secret the colonel was hiding and to restore their honor.
Crystal first appears in Hard As It Gets when Nick and his team rescued Charlie from Church's Gang. She bumps into Shane again.