Steel Port Here I Am
Head to the marked location to meet up with Pierce. Next, drive the car to the Rim Jobs branch in Henry Mills. Park the car inside and customize it. Next, drive to a Planet Saints branch in Salander. Customize your character if you haven't done so before then head outside. There will be enemies outside, including a brute. Take out the lesser guards first then concentrate your fire at the brute. You can evade its attacks if it ever gets close to you by pressing the A button at the right time. After its hp is depleted, you need to finish it off by pressing Y right in front of it.
It's something angry...
After taking out the brute, head to the safehouse to complete the mission.