How can i change the Default Player?

Hey guys, im new in UE4 and i downloaded a map and a character model + animations and more.
I put the Character model in the map but when i click on play, the ThirdPersonCharacter spawns and not the new, what should i do? I also made a short video where i show my problem: - YouTube
thank you in advance!

Welcome. You need to update your game mode to spawn the new character. Check out video #19 here it explains “Game Mode”

If you are looking to have the same control scheme with a different character and animations, just head to the third person character blueprint and change the mesh and animation blueprint. Feel free to ask any questions if you wish. Hope this helps.