1. Call of duty 4 (Modern Warfare)
Call of Duty 4 is today one of the most widely played multiplayer FPS games after Counter Strike and is still rising. It has a well designed
multiplayer progression that gives you something to shoot for online 
Even though the single player is very short the multiplayer mode makes up for it and take Multiplayer FPS games to a new level all
together. A server can hold 24 players at a time and gets to choose from 6 different game modes and around 16 maps. There are six
game modes to choose from. The old standby is team deathmatch, though you can also play in a free-for-all deathmatch, which isn't as
much fun as the team modes. The other modes are more objective-oriented, and a couple of those have you lugging bombs across the
map to blow up enemy equipment, or preventing the enemy from blowing up your base. Others have you capturing control points.
Lastly, you can change up the game rules a bit with a hardcore setting that makes weapons more realistically damaging or an old-school
mode that puts weapons on the ground as pickups and generally moves away from the simulation side of things.
System requirements: - minimum specs
• CPU: Intel(R) Pentium(R) 4 2.4 GHz or AMD(R) Athlon(TM) 64 2800+ processor or any 1.8Ghz Dual Core Processor or better
supported
• RAM: 512MB RAM (768MB for Windows Vista)
• Hard Drive: 8GB of free space
• Video card: NVIDIA(R) Geforce(TM) 6600 or better or ATI(R) Radeon(R) 9800 Pro or better.
System requirements: - recommended specs
• CPU: 2.4 GHz dual core or better
• RAM: 1G for XP; 2G for Vista
• Hard Drive: 8GB of free space
• Video card: 3.0 Shader Support recommended. Nvidia Geforce 7800 or better or ATI Radeon X1800 or better
Ranking System for online mode

2. The game comes with a ranking system for the multi player mode where you earn EXP points for your performance in the game and you
level up to different ranks in the game giving you access to more guns perks etc. Different ranks result in unlocking different weapons
and different perks which make the game more interesting. The EXP you get in the game are based on the Frags and the objectives
completion of the multiplayer side of the game for example if you kill 3 people in a row you get an EXP bonus for the first time you do it.
The chart below gives you a brief overview of the amount of EXP needed to unlock different Ranks in the game.
• Private First Class XP: 0
• Private First Class I XP: 30
• Private First Class II XP: 120
• Lance Corporal XP: 270
• Lance Corporal I XP: 480
• Lance Corporal II XP: 750
• Corporal XP: 1080
• Corporal I XP: 1470
• Corporal II XP: 1920
• Sergeant XP: 2430
• Sergeant I XP: 3000
• Sergeant II XP: 3650
• Staff Sergeant XP: 4380
• Staff Sergeant I XP: 5190
• Staff Sergeant II XP: 6080
• Gunnery Sergeant XP: 7050
• Gunnery Sergeant I XP: 8100
• Gunnery Sergeant II XP: 9230
• Master Sergeant XP: 10440

3. • Master Sergeant I XP: 11730
• Master Sergeant II XP: 13100
• Master Gunnery Sergeant XP: 14550
• Master Gunnery Sergeant I XP: 16080
• Master Gunnery Sergeant II XP: 17690
• 2nd Lieutenant XP: 19380
• 2nd Lieutenant I XP: 21150
• 2nd Lieutenant II XP: 23000
• 1st Lieutenant XP: 24930
• 1st Lieutenant I XP: 26940
• 1st Lieutenant II XP: 29030
• Captain XP: 31240
• Captain I XP: 33570
• Captain II XP: 36020
• Major XP: 38590
• Major I XP: 41280
• Major II XP: 44090
• Lt. Colonel XP: 47020
• Lt. Colonel XP: 50070
• Lt. Colonel II XP: 53240
• Colonel XP: 56530
• Colonel I XP: 59940

4. • Colonel II XP: 63470
• Brigadier General XP: 67120
• Brigadier General I XP: 70890
• Brigadier General II XP: 74780
• Major General XP: 78790
• Major General I XP: 82920
• Major General II XP: 87170
.
• Lieutenant General XP: 91540
• Lieutenant General I XP: 96030
• Lieutenant General II XP: 100640
• General XP: 105370
• General I XP: 110220
• General II XP: 115190
Finally you become a Commander at 120280 EXP points which basically is the last Rank of the game and all the weapons and perks are
also unlocked by this level
The WEAPONS
Most of the weapons are the same as the weapons offered in Counter Strike but trust me they are much harder to control. Massive
recoils and damage as well. In the hardcore mode of the game most of the weapons become much more lethal and choosing the right
weapon for your character is one of the most crucial things in this game.
Pistols:
• M9: Good mag size, very common basic pistol. best for close range. used best with bandolier
• Usp .45: More damage than the m9 with better range (better sights).
• M1911 .45: Good ammo cap, good damage bad sights IMO (lvl 16).

5. • Desert Eagle: Good ammo, high damage(lvl 43) BEST PISTOL!!!!
• Gold Desert Eagle: Good ammo, high damage, very sexy , ITS GOLD PLATED!!! (lvl 55).
Sub-Machine Guns:
• Mp-5: Good damage, good rate of fire, great accuracy, overall an excellent SMG. only problem is that the sights seem to drift
around in sustained fire.
• Skorpion: High ROF, lower damage, short range....looks cool though (low damage makes it a poor SMG, good accuracy though)
• Mini-Uzi: Very high rate of fire, medium damage, kind of poor accuracy at longer ranges(jumpy sights)...(lvl 28)
• AK-74u: High rate of fire, excellent damage, good range, good accuracy (my favorite SMG)
• P90: VERY high rate of fire, good damage, good accuracy at short-somewhat medium ranges (not the best at long range) NASTY
CQC weapon..(lvl 40)
Assault Rifles:
• M16A4: 3 Round burst, excellent accuracy, high damage, med rate of fire. (good chance of killing in 1 burst with stopping
power)
• AK-47: Fully automatic, good accuracy, high damage, high rate of fire (high recoil makes it hard to hit at longer ranges)
• M4: Fully automatic, high accuracy, good damage, high rate of fire (lvl10)
• G3: Semi-automatic, excellent accuracy, good damage(lvl25)
• G36c: Fully automatic, excellent accuracy at med-med long ranges, high damage, medium rate of fire(lvl 37)
• M14: Semi automatic, excellent accuracy, high damage, high recoil...stick with g3 if you dont like recoil(46)
• MP44: Fully automatic, medium accuracy, medium-high damage, short-med range, IRON SIGHTS ONLY!!!!! (lvl 52)
Light Machine Guns:
• M249 SAW: Very high rate of fire, good accuracy, good damage, good range
• RPD: High rate of fire, good accuracy, increased damage (over SAW), good range
• M60E: High rate of fire, great accuracy, high damage, good range(lvl19)
Shotguns:
• W1200: Pump, short range, high damage, slow rate of fire (due to pump action)
• M1014: Semi automatic, short range, high damage, high rate of fire, 4 round magazine (lvl31)
Sniper Rifles: (all high accuracy)

6. • M40A3: Bolt Action, low recoil, med-high damage, slow rate of fire
• M21: Semi-Automatic, very low recoil, medium damage, high rate of fire(lvl7)
• Dragunov: Semi automatic, medium recoil, high damage, high rate of fire (22)
• R700: Bolt action, medium recoil, high damage, low rate of fire(lvl34)
• Barett .50 cal: semi automatic, high recoil, EXTREMELY HIGH DAMAGE, high rate of fire. (INSTANT OWNAGE) (lvl 49)
Unlockable Golden Weapons
Golden Ak-47 - Complete all Assault Rifle challenges.
Golden Mini-Uzi - Complete all SMG challenges.
Golden M60 - Complete all LMG challenges.
Golden M1014 - Complete all Shotgun challenges.
Golden Dragonuv - Complete all Sniper challenges.
Golden Desert Eagle - Reach Level 55
Weapon Attachments/Inventory
Red Dot Sight: This sight replaces your standard iron sights with a RDS reflex sight with a small red dot (hence Red Dot Sight)
that makes it easier to aim your weapon
Grenade Launcher: This allows you to fire 40mm HE grenades from your gun by pressing the left d-pad button and using R1 to
fire (Replaces Perk 1)
AGOG Scope: A scope that allows weapons a longer range capability, but it causes aim drift for your weapon (crouch or prone
reduces drift)
Silencer: This silences your gun and makes it so that when you shoot you don’t show up on radar
Grip: Increases Accuracy on Light Machine Guns and Shotguns, (replaces perk 1)
RPGX2: Gives you an RPG launcher and 1 extra grenade
Claymore: Trip activated mine with about a 160 degree blast radius (in front of the mine) great for defending yourself if you're
a sniper or setting up traps.
C-4: Remote detonated satchel charge, L1 to throw, R1 to detonate (once selected) good for defending small areas or setting
up traps (double tap square with weapon equipped to detonate too)
The PERKS

7. Perks are special powers a player can choose as he levels up in the game, further helping in customizing the classes. They have an effect
on every part of the game. During a multiplayer game a player can choose on of each Class i.e. 3 Perks in total.The perks are divided into
3 classes and are as follows :
Class 1 Perks:
• Bandolier: It's always good to have spare ammo!!!... (lvl32)
• Bomb Squad: Lets you see C-4 and claymores before you find them the hard way...(lvl14)
• Claymore: Gives you 2 trip-activated Claymore mines with about a 160degree blast radius (in front of it) keeps those
people with knives away from you snipers. (lvl23)
• FragX3: self explanatory... useful- but annoying on the other side.(lvl41)
Class 2 Perks:
• Double Tap: for weapons with a slow rate of fire use double tap, the quicker you can get rounds of, the easier the
killing will be(decreases the delay between shots on single shot weapons), but you’ll sacrifice a bit of accuracy (lvl29)
• Stopping Power: You can NEVER EVER EVER go wrong with this perk. for ANY gun
• Slight of hand: Very useful on shotguns/light machine guns so you can reload faster... especially the m1014 (lvl20)
• Overkill: 2 primary weapons! Good for you multi-task people. now you can snipe and assault!!! best used in hardcore
mode (lvl38)
• UAV Jammer: The enemy can't see you when their UAV is airborne... you're- INVISIBLE!!! (lvl11)
• Sonic Boom: Increased explosive damage while using rifle mounted grenade launchers, RPG's, and frags
Class 3 Perks
• Deep Impact: Enemies think they're safe behind walls.... they’re not!!!!!!! (use with higher caliber weapons like assault
rifles and light machine guns, don't waste on SMG's or sniper rifles.
• Iron Lungs: very useful for sniper rifles when you need more time to acquire targets or get those headshots (26)
• Steady Aim: increases hip fire accuracy so you can just Pray n spray... or gain the advantage in CQC.
• Last Stand: Pull out your pistol when you die... i personally think this is a HUGE waste of a slot (8)
• Martyrdom: (pronounced MAR-TER-DUM) drops a frag grenade when you die. VERY annoying, once again, waste of a
slot IMO (17)
• Eavesdrop: enables you to hear the other team's voice chat when they are in close proximity to you (35)
• Dead Silence: make no noise when you walk (you can sneak up and stab people.....(44)
• Extreme Conditioning: Sprint longer distances!
Well usually it is always good to take the longer distance sprints helps you when you have to run for cover. Most of the newbies find
Martyrdom a useful Perk but eventually seeing so many people taking Martyrdom players do not walk near a person they have killed,
which makes it pretty useless IMO. Well I’ll be completing the guide with a introduction to the assault weapons in COD 4. Do look out for
the next part. Most of the information has been collected from http://callofduty.wikia.com/wiki/Call_of_Duty_Wiki and the official Call
Of Duty Website (http://www.infinityward.com/)