I Need help with GameMode Blueprints

hello thank you for reading, Please can you help me with this problem I am having.

I already have two set Game Modes Called Single Player and one Called Online Game Mode and they both have different characters, okay the problem I’m having is I just made a Child to my main Online Character Bp and I want the player to gain Xp in one of my gametypes Survival without having to make another whole Gamemode for Survival because I have a save file to track the Players Xp but its only referred to the Online Game Mode.

Thanks in advance, hopefully i was clear and you can understand what I am saying not the greatest at explaining, if you need more details please comment and ill try my best to be more specific.