The following post will show you what to click on to setup a Tier 1 rally, for your other alliance members to join.
Setting up a Dark Citadel rally is usually done with Tier 1 troops, as they heal in zero time, with minimal cost.
If you want to defeat all the waves in a Dark Citadel, then you will need to use Tier 5 troops, and great gear, talents and research.
You should set your gear to March Size, before setting up your Dark Citadel raid, and after setting it up, switch your gear and talents to Encounter Attack/Defence.
Step 1
The first step is to locate where your Dark Citadel is located.
I am assuming that your alliance officers have already called the DC.
Select the Alliance button on the bottom menu:
Select the Alliance Raids option:
Then select the Go to button:
Step 2
The 2nd step is to set the length of time that your alliance partners have to join your rally.
To do this, click on the Dark Citadel, then select the Rally button:
Then select the amount of time (it defaults to 5 minutes), and then click the Set Time button:
Step 3
The 3rd step is to choose what formation you are going to use.
The OZY alliance uses the Bows behind Swords formation.
To select this keep clicking on the Right Arrow until the name changes to Bows behind Swords. The roman numerals will depend on what level your castle is at.
Step 4
The 4th step is to assign the troops you want to use.
To do this you have to clear the troops that are added by default. You do NOT want to use the default troops as they will be the highest tier troops that you have.
Click on the Clear Formation button shown below. (please note that the picture below shows only T1 troops as my castle only has T1 troops)
After clearing the troops click on the type of troop that you want to add (Ranged shown below), and then on the Tier 1 troops of that type.
Repeat this until you have assigned all the types of troops that you wish to use. (Cavalry are shown being added below).
Step 5
The final step is to start your rally off.
The time shown is how long it will take your troops to get to the Dark Citadel.
It is the usual practice for alliance members to only add the same types of troops that you have added into your rally. So if you only want Ranged units, you should only add Ranged units it.
I can help to post an alliance message about what troops to add as well.