Work with Dr. Volkert to save Father and recruit him as a companion after the main storyline is over. You'll need the Cabot serum and more. There is also an alternative using the Forced Evolutionary Virus.
Work with Dr. Volkert to save Father and recruit him as a companion after the main storyline is over. You'll need the Cabot serum and more. There is also...
Work with Dr. Volkert to save Father and recruit him as a companion after the main storyline is over. You'll need the Cabot serum and more. There is also...