At the beginning of the game Daniel loses his phone but finds a flashlight. Later, when he has to go inside a store, he asks Taylor for her phone because he needs something to light the inside of the store like if he hasn't his flashlight. After the store event, he is seen using again his flashlight for the rest of the game.
In one scene some of the characters are upstairs in a two story abandoned factory building. Angela suggests going down to the "ground floor" and leaving. An American such as Angela would refer to that floor as the first floor not the ground floor.