Few questions

  1. How do I make both teams have the same uniform?
  2. How do I make both teams have the gun game event profile?

1: You don’t. At least in online CBs.
2:

entity{
  _template:t="custom_profile"
  customProfile:t="%enlSqGlob/data/gun_game_profile.json"
}

If with same weapons then do mixed teams when create room.
Be sure that you set in sandbox portal Teams to Any or Fictional.

Create custom_profile entity and write %enlSqGlob/data/gun_game_profile.json or enl/globals/data/gun_game_profile.json in customProfile property.