Open the command console: ESC > Gear Icon > Under the keyboard tab select Advanced > Check off Enable Developer Console
Press the ` button to open the console and type:
map sd_doomsday_event; hostname "boost"; sv_lan 0; sv_cheats 0;
That will create your match. Choose the Red Team.
You can then collect the tickets and be sent to a bumper car match. You will be able to win these easily by yourself. You will need a win in:
Bumper Car Soccer: Score 3 Goals
Duck Collectors: Collect 200 Ducks
Falling Platforms : Survive the longest