[Helps please!] Ally system

[vizard10]

Well this is difficult here, I mean for me , I guess.

The players of my game is Player 1 to 11 are in an alliance group , while Player 12 is an enemy towards all other players .

I am trying to make a map , which have 4 games in it .
While this game , it is quite like a Tower Defense.
How can I change Player 1 to 6 become an alliance while Player 7 to 12 become an alliance and different alliance treat towards the others as an enemy?
As I am trying to explain ,
I have 12 players in my map , I had currently separated the players into 2 different Forces , Force 1 - Player 1 to 11 , Force 2 - Player 12 only.
While in the game play ,

Player 1~6 treats Player 7~12 as enemy.

Yeah , it's quite complicated to explain actually. . . Any help please?

 

[Bloodbath]

scenario-ally properties

 

[GangSpear]

xD,I am
Like this:

xD,Joker!

 

[vizard10]

It's not that ,
I had purposely made it Force 1 - Player 1 to 11 while Force 2 - Player 12 for some reasons.
I need trigger helps instead of standard helps.

 

[Bloodbath]

pls explain further..i cant understand you =_=

 

[vizard10]

As I made an unit , which has a skill called ' Choose Map ' , which is used for choosing a game play field.

Event
- Unit Under Construction Begins casting an ability

Conditions
- (Ability being cast) Equal to Choose Map

Actions
-Player Group - Add Player 7 (Green) to PissedGroup
-Player Group - Add Player 8 (Pink) to PissedGroup
-Player Group - Add player 9 (Gray) to PissedGroup
-Player Group - Add player 10 (Light Blue) to PissedGroup
-Player Group - Add Player 12 (Brown) to PissedGroup
-Player Group - Make PissedGroup treat VillagerGroup as an Enemy.

There's another trigger for this too, are opposite team players.

 

[Ikithe]

Just use the ally and unally triggers? There's no need to try and make some kind of weird group system.