The Guardians that you have created have never been in a fire team together or even seen each other. The closest they've interacted with each other is when one Guardian puts some materials in their vault and the other Guardian takes them, leaving the first Guardian like, "Who stole my frickin' wormspore?! ... They took my box of raisins too!?!?". Will our Guardians ever meet and fight alongside one another? Doubtful, but it would be an awesome idea for the future.