"Gunner" has a lot of flaws, including questionable music choices, iffy CGI effects, and reliance on typical action film tropes. However, it still delivers an old-school black ops thriller. Luke Hemsworth shines as the action hero. That being said, only watch if you have 90 min of your time to waste ...
It was quite decent movie. Had some flaws with weird music that didn't fit the movie and not very realistic scenes few times, but overall I enjoyed watching it.