So I got this game, and it's quite possibly the best FPS on the generation. In fact, it is. It's simply amazing.
It's generally an all-out frag fest, but they got plenty of modes to make people like me happy. Hardcore mode turns off the HUD completely. No more radar, no grenade indicators, friendly fire is turned on, bullets do more damage, and you don't even have a crosshair. It's lovely, feels like Ghost Recon before that series tried to predict the future.
I played from Friday morning to Saturday night, only breaking to sleep. It's simply that good. Other great things:
All achievements are single player. No more joining a ranked Lone Wolves game in Halo and hearing "Do you guys want to do achievements?" Sure, BAM! ROCKETS BITCH! I love spoiling their fun
In COD4, they need to do it all by themselves offline. It's amazingly peaceful online
They also have a TON of perks to unlock, and weapon upgrades. Some of them you unlock late, like get a knife kill an you likely have 15 under your belt by that point, but since completing the challenges give you a huge boost in experience, it's necessary. It gives you something to do, and sometimes gives you ideas you've never thought of. I love doing them, it's like having another 150 achievements.
The weapon upgrades are also different per weapon, so unless you want iron sights, you will be getting at least 25 kills with every weapon in the game to make them all usable. Getting 150 kills with it unlocks the ACOG, which has its uses. There's a ton of weapons for many different scenarios, and you can adjust the perks to fit your style of play.
Overall, it's easily the most balanced FPS I've ever encountered. Despite someone having extra health, being harder to kill, and dropping to the ground with a pistol when he dies, you ignore it. Why? Because you're carrying twice the frag grenades, have bullets that do extra damage and penetrate walls with more speed, allowing you to kill that guy who just ran behind the wall to hide.
11/10. Best FPS since Ghost Recon, the original.