freedom and strategy, the evolution into TFPS, and games like crackdown where shooter platforming are mixed well with RPGing thrown in. the fun of owning a friend multiple times in a row online (battle mode in super mario kart snes is a good preview of the FPS future)
the stories in some games halo:ce , bad company the characters were well thought out and fun to play with,
I think a refinement and further blending of genres will keep developments going strong
or its just funny duke nukem was there
and then portal a puzzle fps brilliant
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