When a match is to be played the match executer will first check both teams' players and tactics. If one of the teams have less than eight players or invalid tactics, the opposing team wins 3-0 without a match. If both teams have less than eight players or invalid tactics the match score will be 0-0. In these cases no ticket revenue is paid.
After this, the match executer will find or set up tactics for both teams. First it will look for specific tactics order. If none is find the default tactic will be used.
If no default tactic is found, the match executer will try to create a 4-4-2 formation. This formation is filled out with random players from the club. As a result, this tactic is rarely a good option and you should therefore always make sure to define a default tactic.