Ok i need help on 2 problems with my map. First is what do I have to do to make it so when a defiller casts Dark Swarm its detected by the game, a location centers on it, and it then hits a unints in that location for like 5 dmg and the dark swarm is removed?

the next is something i knew how to do but i have forgot, how to i make bunkers with rines in them be invisble so u can build ontop of them??

Dark Swarm Question:
You can use something simple to center the location on the dark swarm:
Conditions:
All Players brings at least 1 Dark Swarm to Anywhere
Actions:
Center Location X on Dark Swarm at Anywhere
Other actions

The problem arises when you need to detect it for multiple players, or if you want to do only 5 damage specifically, since the Dark Swarms are all owned by Player 12 I believe, not P1-8. Also there's no Subtract X Damage action, only a Set Unit Health % action.

For the Bunkers:
Pre-place some stacked buildings the size of the bunker somewhere normally buildable. We'll call that Location Y and we'll say supply depots are stacked there.

Conditions:
Current Player brings 1 Bunker to Bunker Location
Actions:
Center Location X on Bunker at Bunker Location
Create 4 Marines at Location X
Execute AI Script Enter Bunker at Location X
Wait (long enough for Marines to enter bunker)
Disable Doodad State for Bunker owned by Current Player at Location X
Kill 1 Supply Depot at Location Y for (Supply Depot Owner)
Move Bunker owned by Current Player at Location X to Location Y
Preserve Trigger.

im pretty sure with the hypers i dont need to worry about the dark swarm being owned by 1 player, i can just use hypers and it wont be noticed rly

That's correct. After centering on the swarm create any unit (i think infested with low damage would be most realistic) that does a little damage, remove the swarm, then wait a bit and remove the unit. Removing the unit is not necessary if its a suicide unit like scoure, infested or mine, obviously.

When using hypers USUALLY the detection is fast enough but sometimes it WILL overlap.
That is not automatically bad.
It works fine when the players are all in the same team and if you don't give money for possible kills.

However, you must take this into account. Using the SET HP % may infact heal an opponent.

Depending on what system you want, your triggers will be different

Virtual HP System
You fire DS, the enemy changes colour.

Standard Attack System
Player 1 creates DS at anywhere
Center location "Center DS" on DS
Create [unit] at "Center DS"
Wait x...
Remove all units at Center DS
Wait x...
perserve trigger

I'd say the best option would be a 5 damage scarab.
I can't exactly remember the order of triggers, but with set generic command point and something else you can get a scarab to go wherever you want it to go, then blow up hitting whoever you want it to hit.

guys, this has already been answered. Dont spam old posts with answers that have already been given

spam? it was a different answer, and an answer just as good. its good to have more information

The Random Suicide Missions AI works much better than JYD.