1.) Don't develop a colony (collect survivors) you will know when enough time has passed for humanity to resettle, its only harder to survive with 25 or more people, you do wan't more than just you though, get a few people to help you and look for these kinds of people, (strong, doctor, smart/scientist, imaginative)
2.) Be prepared, don't let anything sneak up on you.
3.) D-fence (de fence) set up a perimeter/fence to keep you safe, your proper fence style will be explained later.
4.) BAB (Be A Bond) you have a license to kill, use it, mercy will cause the extinction of the human race.