For those of you who wish to create your very own Head Soccer level(s),
here's all the information you need to know (crunched together and in
bad English).

Use normal DeathMatch starts for where an observer will appear when they
join the server.

Out of bounds triggers should be trigger_multiple's that have a value
called "oob" added to them and the value for oob should be "1" (out of
bounds triggers will give the last person who touched the ball an out of
bounds penalty when the ball touches the OOB trigger).

Goal triggers should be trigger_multiple's and have a team value which
is set to either 1 or 2. 1 would be red's goal (which blue would try to
kick the head into) and 2 would be blue's goal (which red would try to
kick the head into).

Make an entity named info_ball where the ball will spawn each round.
info_teamball1 will be where the ball goes when red kicks it out of
bounds (should be near red's goal) and info_teamball2 will be where it
goes when blue does (should be near blue's goal). info_player_team1 is a
red team player start point, and info_player_team2 is a blue team player
start point. There should be 8 starts for each team, placed by their
respective goals.

If you'd like to support bots in your level, add an entity called
info_botgoal1 inside your red team goal and an entity called
info_botgoal2 inside your blue team goal. Bots won't work well on
complicated levels.

