Bridge battle plz help me by the Red baron

I am trying to make a bridge war game and I don’t know how to make it where one team can’t score in their own goal

Here’s what you need to do:
Add an invisible barrier.
Change the activation settings to team.
Place a lifecycle and a trigger.
Make sure the lifecycle is set to game start.
Make sure the trigger is set so that the team you want can only trigger it.
Wire the lifecycle to the trigger.
Wire the trigger to the barrier to activate/deactivate it.