Simply a weapon that locks onto players/vehicles and shoots a missile that will follow and hit the Locked On target.
Elaboration:
I was thinking of having a weapon that continuously shoots a harmless Laser Projectile or Invisible Projectile at a very high speed, and if it collides with a player/vehicle, it is Locked On. Pressing the trigger afterwards would launch a missile that seeks and destroys the target. It would also be cool if we could modify how fast the Missile changes direction (instantly, or kind of sluggishly), whether it is changing direction from the moment fired or changing direction only after a specific time, and whether it changes direction constantly or goes straight, changes direction, goes straight, changes direction, etc. over a set time cycle.
Possible Alterations of the script
Orbital Missile
It would be fired upwards and after a specific amount of time, would change it's direction to come back down onto the target
Scatter lasers
Fires multiple lasers that slowly change direction to collide with the target (possibility of making them capable of piercing the target, circling around him and then piercing him a second time)
Anti Aircraft arcing lasers
Lasers that would arc back and forth in straight lines, changing direction very rapidly but only for a very short amount of time, to track down and destroy aircraft.
A bunch of other missile stuff