I hit the 1 hour mark, will have to finish this level later. I almost ran out of oxygen a couple of times but luckily found my way to an exit. As a side note, last time I played I stopped streaming around the 30 minute mark for some reason. Sucks having to replay this level again, it was hard the 1st time.
Alright! It was tough as I had a hunter alien on my heels the whole time, but I was able to reach Nicole, who was attached to the Marker. I defeated her (eventually) and made my escape with Ellie. What a cool game. Final boss and game ending! Great stream!