[General] Someone who is good at triggers help!

[Warpath]

Hi

This is the only problem im having with my map and any help would be highly appreciated and respected.
I need to create a barricade that will automatically cast taunt whenever a zombie is nearby. thats all.

Whenver i create a barricade this structure automatically cast taunt by itself. so this means that its not in the map yet until i created them.

can someone send me this trigger in a sample map.

 

[Chaosy]

Wouldn't it be easier to do the opposite and simply force zombies to attack barricades if available.

 

[Duckfarter]

As of now, do the zombies attack the barricades if there are no other units to attack nearby?

EDIT: I was thinking of checking for the zombies attack orders but on my test map, they didnt produce any orders.