SC2Mapster

I am attempting to make a defensive structure that attacks multiple units very quickly. Every time the structure attacks, I want it to choose a random unit within range to shoot at. I have absolutely no idea how to do this, but it looks like I need a "Search Area" effect (also kinda clueless on that one). Can anybody help me out here?

Sounds similar to the approach used by the Point Defense Drone. Its weapon simply initiates a Search Area effect to apply a Modify Unit effect to nearby not-invulnerable missiles. If you want the structure to behave similarly, it's easy, and you can use the Point Defense Drone's weapon and effect tree as a reference.

Okay, this is great, but now the structure attacks all units in range, rather than just attacking one at a time. Could you (or somebody else, of course) possibly post a map with the relevant stuff? If not, how do I make the structure choose a random unit from the units that it can attack?

Edit: One more thing: can I set this up so adding additional attacks to the weapon makes it attack two enemies at a time?

@UniEdit: Go

This is most likely because the search effect does not have a limit on how many units to attack. go to the Search effect area, and set the aximum targets to 1.

I just did that, but now it is attacking normally. Rather than spreading the attack, it focuses on one unit until it is dead, then moves on to the next.