@Levi Barros: Not talking about the quality of the game, I acknowledge your honesty. A lot of FPSC games around feature half a page of story and still start, look and play exactly like this one.
In addition, I think its a clever approach to build a game. Checking first in a plain level, if action and framerate works allows you to add a more complex level design afterwards. In any case it's better than to work a month on an elaborate map just to realize that the fps drops below 10 after adding the first enemy
In case you find my grammar and spelling weird ---> native German speaker ^^