Uses a debug trigger to make Matt come out early (and spawns all helicopters). It's only reachable by climbing the tree whose top is invisible and then jumping onto an invisible wall to stop players from jumping over the fence. For this to work i also had to use a prepared account to ensure the fall causes a level up event by completing the challenge for it. On difficulties below overkill this fully regenerates the character. More details in the description of the video.

The only mod used was one to skip the intro because finding the door when you can't see anything isn't easy and relies entirely on the luck that you spawn in the correct place. I've attempted over a period of around 24 hours in total and the intro would only add useless time to it as the game timer only starts when you can control your character (when the intro starts to fade away). This is necessary to hop onto the van and saving more time.