Regroup by TJ Nichols

Reunited with his lover and fellow soldier, Xavier Fisher, Josh Rayne and the other survivors from the alien base watch from the shore as their rescue is blown up. Now on the run and on their own, they need to find a safe place to regroup and figure out how they are going to escape alien country and get back home.
With no military support, they are in desperate need of supplies when they make it to a seemingly abandoned tourist town. But not all is at it seems, and Josh will have to decide who runs and who has to stay and fight to give them a chance. He wants to go home, and he wants more than the vague promises he and Xavier made to each other.