Caution: This achievement is missable and should be known about before starting the game.
This achievement is for completing Episode 1 without dying. There are 12 scenarios within this episode. You can fail at certain button prompts but they cannot result in the character you're controlling to die. Your goal is to avoid seeing the "You Died" screen at all. If you do see this screen, you will have to do Episode 1 all over again after you beat the game. Whenever you are failing prompts while dealing with deadly situations, press and go to load game. This will restart at your last save point. Sometimes the checkpoints are bad because you have to go through a lot of talking before you get to where you were with the quick time events were. When you are doing quick time events and see the red X showing you failed one, then it's likely a good time to just reload. There are moments when failing doesn't matter except for rank, but if you want to be completely sure you don't see the "You Died" screen, then go for a reload.
Note: During the first moments of the game, you will not have a load option because of not getting a save point yet. This is when running away from raptors. To reload you actually have to start the full scenario over again.