WHAT could go wrong when the mission you planned perfectly turned out to be a disaster? Oh, that would be a dumb way to die, isn't it? But Rocket wasn't an ordinary person. She was built to be a fighter; a strong, independent woman who needs no one to be able to survive. It's either to run or give everything she can.
A journey that will determine whether she will live or die. Rocket had one mission and that is to obtain information about the organization that can endanger the lives of thousands. It was a do or die; a suicide that she's willing to take for the sake of justice–and revenge.
But Regan wasn't an easy enemy that she can run from. He's a thousand steps ahead from her and fighting him means death.