XP is gained via Story Quests, and as you gain more XP, it will unlock the ability to add more heroes to your roster, starting from the initial 2 up to 5 heroes and save more ISO-8, catalysts and objects in vault.
XP is gained via Story Quests. It will unlock the ability to add more heroes to your roster and save more ISO-8 in vault. This is starting from the initial 2 up to 5 heroes. It will unlock the ability to add more heroes to your roster and save more ISO-catalysts in vault. This is starting from the initial 2 up to 5 heroes. It will unlock the ability to add more heroes to your roster and save more ISO-objects in vault. This is starting from the initial 2 up to 5 heroes. You gain more XP.