There are two types of Armies: Regular Armies (RA) and Ghost Armies (GA)
One way to make a Regular Army:
1. Open the Army Editor (under the Triggers pulldown).
2. Select the objects you want to be in the army. Make sure they all belong to the same player. Try to keep the object types the same - units with units and buildings with buildings. You CAN make an army of Spearmen and a Barracks, but when you send that army across the map to attack an enemy fortress... well, Barracks don't march so good.
3. Type a Name in the Name field. Descriptive is good, keep it short though, because you can only see about 20 characters.
4. Hit Create Army. Voila!
Now the cool part - you can refer to the name you just gave that Army in any trigger that uses Armies without having to select them ever again!
Another way to make Regular Army:
1. Make a trigger with a Condition or Effect that uses Armies (they'll have Army in the name - like the Army Move effect or the Army Dead condition).
2. Select the units you want in an Army.
3. Click the "Make" button next to the Army pulldown. It will assign a name like Plyr1Army13 to the new Army and populate the trigger (and the Army list in the Army Editor) with this new Army.
This way you can make Armies without futzing with the Army Editor. I use armies a lot and naming them helps me keep them straight, so I almost always use the Army Editor.
Creating a Ghost Army is VERY simple: 1. Open the Army Editor. 2. Select the correct player from the Player pulldown (this pulldown doesn't matter for RAs). 3. Type a name in the Name field. Or don't, a name will be assigned to the Army if you don't want to name it. 4. Hit the Ghost Army button. Voila! You can spawn this army with the Army Deploy trigger effect. In Army Deploy you can set the type, location, number and heading of the units spawned. These units do not exist in your scenario until they are deployed. This keeps them from getting into trouble before they are needed. I'm sure any of you who have had scenarios break because a unit got killed (no matter how well hidden) will appreciate this. And that's just the beginning. -Scout
Now. Ghost Armies. Perhaps one of the coolest new features to our Editor. Besides the camera editor. And the terrain tools. And Undo/Redo. Ahem.
Armies at their heart are a simple way of referring to groups of units. Ghost Armies are a simple way of referring to groups of units that will exist some time after a scenario begins.
Imagine a scenario where your Army stumbles into a quiet glade in the woods. A pack of wolves runs in from the Fog and turns into ulfsarks. The ulfsarks build a tower and when they're done transform into trees.
Happy Editing!