SC2Mapster

Happy to help out. What you're doing is exactly what I did at first when figuring out Galaxy.
One minor point, you might want to change "while (i < 5)" to "while (i < array_count)". :)
You'll also want to change the declaration of "t" to be of type "point", not "int", as you're saving points in there.

You'll want to also keep your web browser open to this link: http://cortexrp.com/starcraft/natives.galaxy. That would be the SC2 Galaxy natives list. You'll find all the useful functions there.

If you look closely, you'll find:

native unitgroup UnitCreate (
    int inCount,
    string inUnitType,
    int inCreateStyle,
    int inPlayer,
    point inPos,
    fixed inFacing
);

So it looks like you want...

UnitCreate(1, "Zealot", 0, 15, t[i], 270.0f);

...to spawn the unit itself.

Take a look at:

native bool     UnitIssueOrder (unit inUnit, order inOrder, int inQueueType);

to actually tell the unit to do a specific order.