A possible concise summary is:
Two friends try to survive a zombie apocalypse caused by a meteor strike. They search for weapons and try to reach the extraction point on top of a skyscraper. They encounter many zombies and obstacles along the way. They finally escape on a plane, but one of them crashes it. The video ends with a promotion of the creator's code and merchandise.
Some possible key facts extracted from the text are:
1. The world is ending tonight and the speakers need to find good guns to survive.
2. Scientists in South Korea have managed to sustain a nuclear fusion reaction running at temperatures in excess of 100 million°C for 30 seconds.
3. The speakers encounter zombies that might be aliens or infected by a virus from a meteorite.
4. The speakers find weapons caches in various locations and try to reach the top of a skyscraper for extraction.
5. The speakers crash their helicopter into a building and die.