It's a very simple unit mass-attack trigger.
Trigger:
- Mass Attack Alliance
- Events
- Player - Player 1 (Red) types a chat message containing -mass as An exact match
- Player - Player 2 (Blue) types a chat message containing -mass as An exact match
- Player - Player 3 (Teal) types a chat message containing -mass as An exact match
- Player - Player 4 (Purple) types a chat message containing -mass as An exact match
- Player - Player 5 (Yellow) types a chat message containing -mass as An exact match
- Player - Player 6 (Orange) types a chat message containing -mass as An exact match
- Conditions
- Actions
- Set MassGroup = (Units owned by (Triggering player))
- Set Y01 = (Center of Horde Base <gen>)
- Unit Group - Pick every unit in MassGroup and do (Actions)
- Loop - Actions
- Unit Group - Order MassGroup to Attack-Move To Y01
- Custom script: call DestroyGroup(udg_MassGroup)
- Custom script: call RemoveLocation(udg_Y01)
- Loop - Actions
- Events