Unlike the old games though, once you get spotted chances are you’re going to give up sneaking and just kill everyone in the vicinity. To do that, the game gives you access to more weapons than you’d know what to do with. The catch is that these weapons are all ID locked, which means they detect the nano-machines in the body of the user, and only work with the owner of that particular weapon. To work your way around this, you meet a gun launderer called ‘Drebin’ on one of your missions, who (aside from unlocking your weapons for a price) trades weapons with you whenever you need to.
If you pick up a weapon you already own from the battlefield, you automatically sell it and receive credits with Drebin, which you can use to buy everything from gun enhancements to ammunition. The gun customization system is quite extensive and superbly implemented – most guns have up to four upgrade slots on to which you can attach different parts (varying from a grenade launcher to a laser sight, depending on the weapon and the position of the upgrade slot). Eventually you gain access to different type of ammunition too, which delivers a lot more hurt than the standard bullet.
This plethora of weapons and seemingly unlimited cache of ammunition (that you can buy for cheap from Drebin) ends up making the game too easy. Everything from your standard enemy grunt to the toughest bosses fall quite easily once pumped with lead, which is really unlike what you’re used to in earlier Metal Gear games. While the inclusion of the in-game arms market is a well-implemented, awesome feature, it makes the game too simple for the hardcore MGS fan who's used to thinking twice before he wastes his precious ammunition. The more you think about it, the more Metal Gear Solid 4 feels like a game targeted at a middle-core audience rather than diehard fans.
I don’t really blame Konami or Kojima for this though, since the game more than makes up for the lack of stealth and the easy difficulty level by the inclusion of some really memorable moments, and others that will make you scream your head off with excitement. While MGS4 isn’t the ideal Metal Gear game, it’s probably the most epic experience of cinematic gameplay you could hope for. In fact, if you’re a fan of cinematic gaming, this is absolutely the best. With a single-player campaign that lasts for roughly 25 hours, and the online capabilities of ‘Metal Gear Online’ (which Nash will tell you about next week), this game’s a must have for PlayStation 3 owners.
How can u compare cod4 to mgs4. I loved cod4. But they are from different genre. You are suppose to finish the game within 5 hrs in big boss extreme mode to unlock big boss and no alert phases. Wonder how nikhil will do that. 
