To boost this achievement, you will need two other people. One person plays Jason while you and the other person play as counselors. Then follow these steps:
1. Call Tommy by pressing
in front of the ham radio station inside the building with a tower outside.
2. The counselor not going for this achievement presses
and hovers over the option to leave the game.
3. Jason kills both players.
4. If the player going for the achievement doesn't spawn as Tommy, (Jason will know before both players), the other player should IMMEDIATELY leave the game. This will force the Tommy spawn for the player after this achievement.
5. Repeat this process until the achievement pops.