It's fine if those standards aren't necessary to have a good game.
That's a pretty easy thing to do as God of War has nothing to do with being a modern FPS.
Joking aside, not all FPS games have or need voice chat (such as single player FPS games) or even in some cases (for indie games and Doom mods mostly) jumping. Features like jumping and voice chat, while nice additions for many games that have them, are not necessary to have a fun game. But features like fast weapon switch is one of those good modern features I was talking about as it prevents having to stop the game to select a weapon, and lets the game continually flow.
