Call of duty 6: modern warfare 2 was release in 10 November 2009.It was available on PC, PlayStation 3 and Xbox 360.After it was first release the game sold approximately 4.7 million copies worldwide in 24 hours.In march 16 2010 activision have sold more than 14 millions copied worldwide.it was second best selling in UK and third best selling game in America.
In Modern warfare 2 special ops mode included.I think it was the game more challenging than before. special ops mission is different from single player it is harder and it optional.
multiplayer also included in Modern warfare 2 but you must buy original one.If you buy the pirated one you still can play single player and special ops but you can't play multiplayer cause of some reason.In Cod4 you can only level up until level 55.In Modern warfare 2 you can lvl until lvl 80.you also can get tittle so people will notice you.In Cod 4 multi player if you got kill streak you use special skill.In modern warfare the kill streak maximum is 25 while cod4 only until 7kill.
here are kill streak list:
3 - UAV: Deploys a UAV to scan the map and reveal enemy locations. Now able to be shot down.
4 - Care Package: "Air drop a random killstreak or ammo". Deploys by throwing a red smoke grenade obtained after getting a 4 killstreak. The care package can be picked up by anyone once it hits the ground, including the enemy team. The Care Package can also kill, if it lands on a player.
4 - Counter-UAV: Blocks an enemy UAV and disables their radar for the duration. This can also be shot down.
5 - Sentry Gun: Allows the player to deploy an automated M5 Minigun Turret. The gun automatically fires at enemies in its line of sight, but it can be destroyed by enemy fire. Once deployed, the player who placed it can pick it back up and redeploy it somewhere else.
5 - Predator Missile: Fires one controllable missile at a designated target area. User is vulnerable during use.
6 - Precision Airstrike: Initiates an airstrike on a targeted area much like the Airstrike in Call of Duty 4. However, the user can now control the direction the airstrike comes from.
7 - Harrier Strike: Deploys a small airstrike followed by a hovering harrier that will attack enemy players for a short time.
7 - Attack Helicopter: Deploys a Hind (for Spetsnaz, Militia and OpFor teams) or a Cobra armed with one minigun to attack enemy players.
8 - Emergency Airdrop: Deploys a Cargo plane that drops four care packages.
9 - Pave Low: Deploys a Sikorsky MH-53 armed with two gun turrets.The Pave Low also has one flare defense against guided missles.
9 - Stealth Bomber: Deploys a B2 Spirit that is invisible on the enemies radar. The bomber drops a large carpet bomb.
11 - Chopper Gunner: Deploys a AH-64 Apache (for Task Force 141, Army Rangers, and SEALs) or a Mi-28 Havoc (for Spetsnaz, Militia, and OpFor) attack helicopters that the player controls. User is vulnerable during use.
11 - AC-130: Deploys an AC-130 gunship that the player controls. User is vulnerable during use. The AC-130 has 2 flare defenses against guided missles.
15 - EMP: Deploys an Electromagnetic pulse that destroys enemy killstreaks and disables the enemies' HUD, radar and any other device that uses electronics (various attachments, C4, Claymores, Semtex, etc.) Enemies also cannot use any of their killstreaks while the EMP is active. The EMP also give the enemie's screens a bit of a grainy look to it.
25 - Tactical Nuke: Calls in a nuclear weapon that detonates after 10 seconds, killing every player in the match and ending it in favor of the bomb user's team.
there also alot of new weapon.Here are it picture:
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