An event that can be set in the out parameters. You can event the brick to fire a projectile at another brick with a name, another player, or a bot. You can also set how long you want it to fire and max should be 8 seconds to prevent spam. (not that it wont anyways.)
It would be grate for brick built turrets/cannons/tanks/etc. One of the reasons I want this is for my space ship I'm building.