Basic gameplay isnt very original, but when combined with amazing graphics and enough tweaks, this game is a must have.
What further enhances the gameplay are the gorgeous graphics! These are some of the best graphics ive seen on the 360 to date. Worth not are the monsters (or Akrids) which look incredibly real and lifelike despite there otherworldly characteristics. The explosions are incredibly awesome and satisfying especially when when you make them happen.
What detracts from the game overall is the story. In short, it made absolutely no sense at all! It was a incoherent mess, no doubt the victim of the Japanese to English translation. I found myself ignoring the story altogether. Multiplayer was fun with the usual assortment of options (this is the part of the game i have the least experience with). All in all, if you love Sci-Fi based shooters, then you will love this game. Highly recommended.