*Singleplayer and multiplayer play

*Gaurds becomes suspicious of your behavior if acting oddly

*Every kill you make can eventually lead to you being caught forcing you to only kill when needed and hiding the bodies of your victims

*Ability to hide bodies in different areas (like sewer drains, dumpsters, etc.) and ability to change into the clothes of your victims to fool others

*Civilians roaming around make it difficult to perform your tasks without being caught. If they see you doing anything suspicious, they will report you to the nearest gaurd or officer.

*You can buy accessories for weapons like laser sight modules, scopes, and supressors. Or you can modify equipment like filling hollow point bullets with poision to insure instant death.

*Improved physics engine, and damage models

*Realistic damage, for instance if shot in the jugglar vein blood will squirt out

*When looking through a scope on a weapon the scope will bob up and down slightly making it more difficult to hit targets

*More realistic deaths ie. once in a great while when killed instead of immediatly dying you'll have a slow death ( added for realistic purposes only, we're not trying to be sick)

*Many easter-eggs including hidden CVAR's, map secrets, and other little surprises

*Follow your target for days or weeks observing their daily activites planning where and how to strike

*Build custom weapons like lightbulb bombs so when your target turns on their lamp it will explode, or poision your targets' medication so when taken causes instant death

*If you pick up a second handgun of the same type you will have akimbo

*Enemies include; police officers, drug dealers, gaurds, swat teams, or anyone else who dares to get in your way.

*Ability to pick locked doors

*Choose what type of ammunation your gun uses; hollow point, subsonic, etc.

*In-between each mission you are at your house. You can choose to test-fire guns and explosives in your backyard, access mission information and access blackmarket weapons from your computer, or head off to one of the following locations:

Pharmacy- Here is where you can purchase poisions and explosive liquids

Hardware store- Great place to pick up explosive compunds

Airport- Head to the airport to make reservations for a flight to your marks' town and take a flight there.

Post office- Mail your equipment to the town you will make the hit in (you obviously wont be able to get your equipment onto the plane)

*You have the choice where to make the hit on your target, you can run into his office and spray him full of bullet-holes, snipe him while he is eating in his favorite restraunt, kill him while he is sleeping in his bed, or follow him into a supermarket and kill him while he is shopping (all choices vary mission-to-mission)

*Slow motion mode with real bullet-time