Projectile

[pr0-assasin]

How would I go about doing this, i want it like a laser tag map where you attack ground and you shoot and it travels until it hits the target or dissipates etc

 

[Bogrim]

You'll want the missile to be a dummy unit which you can move with triggers and detect when the unit comes in range of a suitable target, and then trigger the effect.

There's several ways to go about this, the best and most smooth are vJass systems. In GUI, one of the best methods I found was Accname's idea of giving the dummy unit Permanent Immolation and using a damage event to detect when the missile would strike an enemy unit, saving you the lag of checking for units in range with a periodic event.