Armor

This is two parallel stories with two tough guys as the main characters. The prose is tough guy style. Felix is an indomitable warrior scout on the planet Banshee in the war against the ants. He survives many more combat drops than is statistically expected. Jack Crow is an indomitable space pirate who escapes from prison and joins a research station. The two stories are only tenuously connected but they do mange to converge in the end.

If you like military SF perhaps you'll like this one. It was recommended to me, but I was disappointed. It's okay I suppose, but far from great.