Scroll Down to view Strat

Killing an Expansion in 15 Seconds Confuses the Enemy.

Or.. if you prefer.. Zileas' 4 shuttle doom drop.

So very often its a good idea to have a fast drop attack force for dealing with land units and ground defenses.  This techinque, which I have named a sunny warm, and friendly name, is called "The Doom Drop", which some have also called "Zileas' Bitch Whip of Doom".  There are really two varieties of the doom drop, which correspond to the results.  The first kind is the "Original" Doom Drop, which lacks hallucinations.  The second type, the "Extra Crispy with Slaw" variety, involves hallucinations.

The idea behind a doom drop is to saturate enemy defenses, and present an overwhelming concentration of firepower to a small area in a very small ammount of time, thus immediately clearing the anti air defenses, any units on the ground, and hopefully the nexus/cc/hatch. Generally, you will use hallucinations against "hardened" island targets (heavy turrets/cannons/spores, heavy marines/hydralisks, etc) so that you can actually get your shuttles in, and you will drop non hallucinated doom drops at main bases (with scout support).

For the hallucinated variety, basically you should hallucinate a bunch of scouts(which have more hps than shuttles) or shuttles or both, and get a full hallucination group.  Then you need 4 full shuttles (or even 5 if you prefer) of miscellaneous stuff I will detail shortly.  Send the hallucinations into the middle of the anti air defenses, and drop the shuttles right behind with mass drops in various locations nearby on the island.   The units should overwhelm any stationary defenses except possibly massive battlecruisers in the air, or 10 + guardians around the general area.

One thing you MUST remember about a doom drop is that its effectiveness has pretty much an exponential relationship to the speed with which you do it. In otherwords, if you land a bunch of troops on an edge of an island, and the targets are half a screen away, you lose TONS of effectiveness.  Drop on the edge of a LARGE island and  you lose even more.  You have to do it quickly, with no losses, and in their face. Don't let them get reinforcements, and certainly dont let them form their units up in reasonably good formations.  Hallucinations are your friend.

Suggested Doom Drop Payloads

Against Terran:

4 Zealots
4 Reavers
3 Templars
Probe

Against Zerg with LIGHT sunkens/hydras, and heavy air:

5 Archons
1 Reaver
3 Templars
Probe

Against Zerg with light air, and heavy sunkens/hydras:

1 Archon
3 Reavers
4 Zealots
3 Templars
Probe

Against Protoss (heavy cannons)

8 zealots
2 reavers
3 templars
probe

Note that large ammounts of air defense doing defensive duty can mess this sort of drop up a good deal.  Bcs and carriers in particular. Repeated attacks are necessary, and scout support a must.

Basically you just drop and see what happens.  Against protoss and terran its recommend that you spread out your units.  Vs zerg, concentrate your units, but spread out your templars and hold at least one in the shuttle (in case a queen comes by).

Also, the probe is in ALL of the recommended drops so that you can quickly secure the island by building up a cannon network.  The Cannon Push is very similar to this, and is a more aggresive version of using cannons to secure territory.