Starter content for multiplayer - be or not to be?

Hi, guys,

please explain one thing -
should I use starter content (third person, when choose new project) for my simple multiplayer game (for ex. login, run, shoot) or may it will be easy to create needen things for this?

I ask because size of the starter content project - 650 mb, and perhaps I’ll not use most of them

Thank you very much!