Team Red goes in the opera in disguise and unarmed. Can´t be killed as long as they are not hostile. Members of Team Red are hostile as soon as they enter any restricted area (backstage area, stage) While not being hostile, you can´t sprint, make damage by shooting or get killed. Goal is to eliminate the singer and steal as much cocaine as possible. As soon as the alarm was triggered, the escape gates open. Cameras will spot you. Defenders can be killed by meeling them in "disguise mode".
Team Blue need to protect the goods and the singer. In an emergency situation they need to prevent the escape of any hostiles.
There are multiple ways the singer can be killed. He just can be shot or killed using the enviroment. In order to get gear the attackers need to find them in the storage/vaults/dead guards etc.
The longer the singer stays alive, the more points the defenders get.