It’s got potential, but (and I’m assuming that this is meant to be a feature film), it needs to get more specific. Take the film The Ministry of Ungentlemanly Warfare as an example.
It’s inspired by the true story of how Winston Churchill recruits a small group of well trained, albeit unorthodox soldiers who essentially serve as the precursor to modern day special forces.
But, the film narrows its focus by honing in on a key mission to infiltrate a neutral Spanish-controlled island and steal Axis ships from an international harbor while avoiding international fallout. You need to do the same.
So in your logline, focus on a key mission that earned this group the name “The Old Bastards”. Your logline should focus on the mission’s main objective as well as the insurmountable odds that the team is up against and has to overcome. As it’s currently written, the stakes are nonexistent.
Overall though, it does sound like a great film! 🙂