From my first ever xcom 2 play through: I was bad at xcom at this time, I didn't have a stable income of supplies and resources, and I didn't have any weapon or armour upgrades except the tier 2 sword. The ship gets shot down by ADVENT, cue the 'save the ship' mission, I send my most capable soldiers to fight. We destroy the jammer but at a huge cost, many soldiers perished, eventually all my frontline soldiers fall as we try to extract. One sniper witnessed it all, Zoe Robinson, she was the only one to make it out alive that day, she was sniping from the fortifications at the ramp. She is now a permanent character in my character pool, scarred and hiding in the shadows swearing revenge for those who died.