"To choose a character" means selecting or deciding on a person, fictional or real, to portray or identify with in a particular situation or role-playing scenario. Full definition
Players are given the option of choosing a character from five different classes and can play in single player / AI battles or online multiplayer battles. (lifewire.com)
At the start of your game you are given the opening options of choosing your character. (jgghgames.com)
You don't choose a character class with a varied number of weapons and perks you can mix - and - match. (dailydot.com)