Everything you Need To Know About MW3

Primary weapons:

Assault Rifles:

• M4A1
• M16A4
• SCAR-L
• CM901
• Type 95
• G36C
• ACR 6.8
• MK14
• AK-47
• FAD
• Famas (single player)

Submachine Guns:

• UMP45
• MP5
• PP90M1
• P90
• PM-9
• MP7
• MP5K
• AK-74u
• Vector (single player)

Shotguns:

• USAS 12
• KSG 12
• SPAS 12
• AA-12
• Striker
• Model 1887

Sniper Rifles:

• Barret .50cal
• L118A
• Dragunov
• AS50
• RSASS
• MSR

Lightmachine Guns:

• L86 LSW
• MG36
• PKP Pecheneg
• MK46
• M60E4
• RPD
• M240

Special:

Riot shield

Secondary weapons:

Handguns:

• USP .45
• P99
• MP412
• .44 Magnum
• Five Seven
• Desert Eagle

Machine Pistols:

• FMG9
• MP9
• Skorpion
• G18

Launchers:

• SMAW
• FIM-92 Stinger
• Javelin
• XM25
• M320 GLM
• RPG-7
• AT4

Equipment:

Leathal Grenades:

• Fragmention grenade
• Smetex
• Throving Knife
• Bouncing Betty
• Claymore
• C4

Tactical:

• Flash Grenade
• Concussion Grenade
• Scrambler
• EMP Grenade
• Smoke Grenade
• Trophy System
• Tactical Insertion
• Portable Radar

Perks:

Tier 1:

  

Recon: Makes explosive damage paint the target on the mini-map.
Recon PRO: Makes bullet damage paint the target on the mini-map.

Sleight of Hand: Decreases the reload time for all weapons by 50%.
Sleight of Hand PRO: Switch weapons faster.

Blind Eye: Undetectable by air support and sentries.
Blind Eye PRO: Launchers lock-on quicker and extra bullet damage versus air support and sentries.

Scaveger:  Replenishes grenades and ammo from fallen ones, also grenade launcher ammo if the  dead had one.
Scavenger PRO: Unkonown.

Extreme Conditioning: Longer sprint time.
Extreme Conditioning PRO: Climb objectives faster.

 Tier 2:

Quickdraw: Aim down sights (ADS) faster.
Quickdraw PRO: Recover from equipment and grenade usage quicker.

Blast Shield: Increased explosive resistance.
Blast Shield PRO: Resistance to flash and stun.

Assassin: Undetectable by UAV, portable radar, thermal, and heartbeat sensors.
Assassin PRO: Immune to CUAV and EMP. No red crosshair or name when targeted.

Overkill: Carry two primary weapons.
Overkill PRO: Allows attachment(s) on both weapons.

Hardline: Each Strike Chain require one less point.

Hardline PRO: Every two assist counts as a kill towards your killstreak, deathstreaks require one less kill.

Tier 3:

Marksman: Identifies enemy targets at a longer range by showing their player names at a greater distance.
Marksman PRO: Longer hold breath.

Stalker:  Faster movement speed while aiming down the sights.
Stalker PRO: Delay enemy Claymore explosions.

SitRep: Detect enemy explosives and tactical insertions.
SitRep PRO: Louder enemy footsteps.

Steady Aim: Increased hip fire accuracy.
Steady Aim PRO: Weapon is ready faster after sprinting.

Dead Silence: You make no sound.
Dead Silence PRO: No falling damage.

Weapon Proficiency:

Weapon Proficiency is a type of weapon customization. Getting kills with weapons levels them up, giving them upgrades. The player can only equip one Weapon Proficiency at a time and are not applied to secondaries.

Name	Description	Weapon type
Kick	Reduced recoil.	All weapons.
Range	Increased range.	All weapons excluding Sniper Rifles and Lightmachine Guns
Attachments	Equip two attachments to the same weapon.	All weapons.
Focus	Reduced flinch when shot.	All weapons.
Melee	Faster melee.	Submachine guns.
Stability	Reduced sway.	All weapons.
Impact	Better bullet penetration through walls .	All weapons.
Speed	Faster movement with weapon equipped.	Lightmachine Guns and Sniper Rifles.
Damage	Shells do more damage.	Shotguns.
Breath	Hold breath while aiming down the sights.	All weapons (snipers have in stock).

Strike Chain:

The Strike Chain system in Call ofDuty: Modern Warfare 3 replaces the Killstreak system used from Callof Duty 4. When the player achieves a certain amount of points without dying (a pointstreak), bonuses are gained.

The Strike Chain rewards are divided into three different Strike Packages, with players being rewarded with different equipment, support or perks, depending on which Strike Package is selected.

The three Strike Packages are Assault,Support and Specialist, with Support being the only package that continues the Strike Chain through death, and Specialist exclusively dealing with additional perks. As in previous games, only three rewards can be selected at once.

Assault Strike Package:

Points	Reward	Description
3	UAV	Shows enemies on the minimap.
4	Care Package	Airdrop a random point streak or ammo.
5	IMS	The Intelligent Munitions System detects and eliminates enemy combatants.
5	Predator Missile	Remote control Missile.
5	Sentry Gun	Airdrop a placeable Sentry Gun.
6	Precision Airstrike	Call in a directional airstrike.
7	Attack Helicopter	Call in an Attack Helicopter.
9	Strafe Run	Strafing Run of 5 Attack Helicopters on a designated point.
9	Little Bird Guard	Get personal air support from a Little Bird Guardian.
9	Reaper	Laser missile targets remotely from the Reaper UAV.
10	Assault Drone	Airdrop an Assault Drone.
12	AC130	Be the gunner of an AC130.
12	Pave Low	Large, heavily armored assault helicopter.
15	Juggernaut	Receive advanced armor via carepackage.
17	Osprey Gunner	Be the gunner of a V-22 Osprey.

Support Strike Package:

Points	Reward	Description
4	UAV	Shows enemies on the minimap.
5	Counter UAV	Jam the enemy radar.
5	Ballistic Vests	Deploy a bag of Ballistic Vests for your team. Lasts for short time, increasing overall health.
5	Airdrop Trap	Kill enemies with a booby-trapped airdrop crate.
8	SAM Turret	Automated SAM turret that destroys aerial killstreaks.
10	Recon Drone	Control a Recon Drone, targeting enemies for your team.
12	Advanced UAV	Call in an Orbital Recon that shows the direction your enemy is facing. Sweeps like a UAV.
12	Remote Turret	Toss a small turret and remotely control it.
14	Stealth Bomber	Airstrike undetectable on enemy maps.
18	EMP	Temporarily disables enemy electronics.
18	Juggernaut Recon	Receive advanced armor via care package. Riot Shield and USP .45.
18	Escort Airdrop	Call in a V-22 Osprey to drop and protect 4 care packages.

Specialist Strike Package:

The Specialist Strike Chain rewards are locked at Point Streaks of two, four, six, and eight. At two, four and six a player using the Specialist Strike Chain is granted an additional Perk. Once the player gets a Point Streak of eight they are given every Perk in the game. All Perks obtained through the Strike Chain are lost upon death and must be re-earned.

Deathstreaks:

Deaths	Name	Description
4	Juiced	Move faster for few seconds after spawning.
4	Final Stand	You can shoot with your primary weapon when downed. You can also move around and can get up after you survive enough.
4	Martyrdom	Drop live grenade in ground after you die.
5	Revenge	You'll see the position of the last enemy that killed you.
5	Hollow Points	Extra bullet damage, ends after enemy is killed.
6	Dead Man's Hand	Go to last stand with C4.

General Information:

1. Each prestige has 80 levels, ammount of prestiges is unknown. 
2. You can now customize your weapons and class with Weapon Proficiens.
3. You have to choose your Pointstreaks from one of the three Strike Package choices.
4. New gametypes! (Kill Confirmed and Team Defender
5. Pointstreaks reset after obtaining the third pointstreak reward.
6. Modern Warfare 3 will have 20 DLC pieces delivered over a 9 month period.
7. The game will support new feature called Elite: http://www.callofduty.com/elite
8. Titles and Emblems will be like in MW2.
9. Spec Ops mode is improved with new Survival Mode, Survival mapswill bve same as multiplayer.
10. There are total of 16 stock multiplayer maps.
11. Players can scroll their pointstreak rewards.
12. New addition of Prestige Shop.
13. Modern Warfare 3 will have updated Theater Mode.
14. There is no Call of Duty currency systeam.
15. Camoflagues can be added to secondary weapons.
16. There is no info if 3D mode will return
17. PC has Dedicated Servers and will use steamworks.
18. Wii version is developed by Treyarch.
19. There is dedicated team to handle hacker/booster reports.

 New Game Type

Kill Confirmed -  is an all new gametype which will see players killing enemies and then having to run over them to pick up a set of dogtags to confirm the kill and score points for your team. while you are doing this, the enemy team will try to collect the dogtags first to prevent you from confirming the kill.

Team Defender - is the other new gametype. in this mode players will grab a flag (like capture the flag) and then protect the flag carrier in order to gain points for their team.

In addition to these 2 new modes, a variety of modes exclusive to private match have been introduced.

Infection - Sees one player starting out as the infected and killing the other players until no one is left. when you are killed you join the infected team to help hunt down the survivors.

Drop Zone - Sees one team holding a Drop Zone from the other team in order to secure Team Points and Care Packages from their team

Team Juggernaut - Sees a Juggernaut joing your team and with his help you must kill all the enemy team who also have a Juggernaut. First to reach the score limit wins

Juggernaut - Sees you trying to kill the Juggernaut so that you can become the new Juggernaut and then you have to survive against the other players trying to kill you

Gun Game - Sees the player in a race to see who can be the first to dominate with every gun

One in The Changer - Sees you gaining ammo by killing the enemy player. The last player alive wins

Private matches have also been enhanced, allowing players to create even more gametypes than the ones listed above, and then share them with their friends.

In addition to this, Players who are subscribed to Call of Duty Elite will be able to vote on these player created modes and some of them could turn into Pubic Playlists

Factions:

Spetsnaz vs SAS (in Arkaden)
Spetsnaz vs Delta Force (in Dome)
Spetsnaz vs GIGN (in Resistance)
Inner Circle vs SAS (in Underground)
Africa Militia vs PMC (in Village)

Single Player only:

French Armed Forces
Ultranationalists
Bundeswehr (German military)

Maps:

Arkaden:
-Shopping mall in Germany.

Dome:
-Derelict Cold War era desert radar command bunker.

Underground:
-London Underground station at surface.

Village:
-African village in a jungle

Resistance:
-Urban map located in Paris.

Carbon:
-Unknown

Interchange:
-Unknown

Meteora:
- Unknown

Mogadishu:
-Unknown

Coast:
-Unknown

Lambeth:
-Urban  map located in London. (speculation)

Level Unlocks:

Level:	Unlock
1	Default Classes, M67 Grenade, Flash Grenade
2
3
4	M16 Assault Rifle, L86 LSW Light-machine Gun
5
6
7
8
9
10	Scar-L Assault Rifle
11
12
13
14	FMG9 Machine Pistol
15
16
17
18
19
20
21
22
23	UMP45 Sub-machine Gun, KSG 12 Shotgun
24
25
26	MP5 Sub-machine Gun
27
28
29
30
31
32	Type 95 Assault Rifle, Final Stand Deathstreak
33
34
35
36	Skorpion Machine Pistol
37	Bouncing Betty
38	P90 Sub-machine Gun
39	Scavenger perk
40	FIM-92 Stinger AA-launcher
41
42	G36C Assault Rifle
43
44	RSASS Sniper Rifle
45	Trophy System
46	.44 Magnum Handgun
47	Overkill perk
48
49
50	ACR 6.8 Assault Rifle
51	Martyrdom Deathstreak
52	XM25 air-burst Grenade launcher
53	Claymore
54	MK46 Light-machine Gun
55	Dead Silence Perk
56	PM-9 Sub-machine Gun
57	Dead Man's Hand Deathstreak
58	Five seven Handgun
59
60	MK14 Assault Rifle
61	Tactical Insertion
62	Model 1887 Shotgun
63
64	M320 GLM Grenade launcher
65
66	MSR Sniper Rifle
67
68	AK-47 Assault Rifle
69	C4
70	G18 Machine Pistols
71	Hollow Points Deathstreak
72	M60E4 Light-machine Gun
73
74	MP7 Sub-machine Gun
75
76	Desert Eagle Handgun
77	Portable Radar
78
79
80	RPG-7 Rocket launcher, Prestige Mode