trigger_counter
Used to combine multiple inputs (buttons, triggers, etc) to one target.
1.Firstly, create a good sized room (300x300x300) and place your info_player_start and a light in there.
2.Next add a brush to the room with the "trigger" texture on it. Apply the trigger_counter entity to it. Give it a "target" of "lights". Then give it a "targetname" of "multi".
3.Place 3 buttons on a wall, and give each a "target" of "multi".
4.Add a light entity. Give it a "targetname" of "lights". Also, for this example, lets make the light start off, so it turns on when all 3 buttons are pressed. Give it a "spawnflags" of "1" for START OFF.
5.Compile your map and check it out in Quake2. Here's a sample map showing the example. Comments & Questions to
Quake Workshop