Did some Research & assembled some Info about Weapons in Counter-Strike Source...
Hope I covered every thing  :
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KNIFE:

Standard Issue Navy Seal Knife
Nickname: Knife

Damage Primary – 35
Damage Secondary – 50+
Speed Primary – Fast
Speed Secondary – Slow
Price - Free

PISTOLS:

H&K USP Tactical .45 (KM Tactical .45)
Nickname: USP

Damage – 17
Damage(silenced) – 15
Ammo Capacity – 12
Accuracy - Good
Speed - Ok
Price - $500/Free
Secondary Fire - Silencer

Glock 18 (9x19 Sidearm)
Nickname: Glock

Damage – 12
Ammo Capacity – 20
Accuracy – Great
Speed – Very Fast
Price - $400/Free
Secondary Fire – 3-Round burst

MR Desert Eagle .50AE (Nighthawk .50AE)
Nickname: Deagle

Damage – 40
Ammo Capacity – 7
Accuracy – Ok
Speed - Slow
Price - $650

Sig Sauer P229 (228 Compact)
Nickname: P228

Damage – 19
Ammo Capacity – 13
Accuracy – Good
Speed - Very Fast
Price - $600

FN Five-SeveN (ES Five-SeveN)
Nickname: 5-7

Damage – 14
Ammo Capacity – 20
Accuracy - Perfect
Speed – VeryFast
Price - $650

Beretta Elite (.40 Dual Elites)
Nickname: Dualies

Damage – 18
Ammo Capacity – 15x2
Accuracy - Horrible
Speed - Fast
Price - $650

AWARDS

- Good Pistol for beginners: USP

I chose the USP for this category because the USP is powerful, stable, and easy to handle. Don't get me wrong it is still hard to use.

- Good Pistol for snipers: Desert Eagle

I chose the Deagle because Snipers have to get away from people with assault rifles, so this gives people some stopping power

- Best Pistol: Sig P228/9

I chose the p228 as Best Pistol because it is everything in one, good power, good speed, good capacity, good accuracy.

SHOTGUNS:

Benelli M3 Super 90 (Leone 12 Gauge Super)
Nickname: Pump

Damage – 80+
Ammo Capacity – 8
Accuracy – Good at close range, Bad at long
Speed - Slow
Price - $1700

Benelli M4 (Leone YG1265 Auto Shotgun)
Nickname: Noob Cannon, Auto Shotty

Damage – 50+
Ammo Capacity – 8
Accuracy – OK at close range, Bad at long
Speed - Slow
Price - $3000

AWARDS

- Best Shotgun – Benelli M3 Super 90

- Great Power, 1 hit kill headshots, cheap, and you don’t get called a noob if you use it!

SUB-MACHINE GUNS:

Steyr TMP (Schmidt Machine Pistol)
Nickname: TMP

Damage – 10
Ammo Capacity – 30
Accuracy – Good at close range, Bad at long
Speed - Fast
Price - $1250

Mac M10 (Ingram Mac-10)
Nickname: Mac10

Damage – 13
Ammo Capacity – 30
Accuracy – Good at close range, Bad at long
Speed - Fast
Price - $1400

H&K MP5 Navy (KM Sub Machine Gun)
Nickname: MP5

Damage – 13
Ammo Capacity – 30
Accuracy – Great at close range, OK at long
Speed - Fast
Price - $1500

H&K UMP (KM UMP45)
Nickname: UMP

Damage – 16
Ammo Capacity – 25
Accuracy – Good at close range, Bad at long
Speed - Medium
Price - $1700

FN P90 (ES C90)
Nickname: P90

Damage – 13
Ammo Capacity – 50
Accuracy – Good at close range, Bad at long
Speed – Very Fast
Price - $2350

AWARDS

- Best SMG – FN P90

- Fast, long clip, did I mention fast?

- Best SMG for Noobies – Mp5

Ive played CS for a long time now, and Ive seen the MP5 get worse, but with source, it got a lot worse. But still a good gun for noobs lol.

ASSAULT RIFLES:

GIAT FAMAS (Clarion 5.56)
Nickname: FAMAS

Damage – 20
Ammo Capacity – 25
Accuracy – Near Perfect
Speed – Fast
Price - $2250
Secondary Fire – 3-Round burst

IMI Galil (IDF Defender)
Nickname: Galil

Damage – 22
Ammo Capacity – 35
Accuracy – Ok
Speed – Very Fast
Price - $2000

AK-47 (CV-47)
Nickname: AK

Damage – 27
Ammo Capacity – 30
Accuracy – Ok
Speed – Fast
Price - $2500

Colt M4a1 Carbine (Maverick M4a1 Carbine)
Nickname: M4  (My Fav)

Damage – 22
Ammo Capacity – 30
Accuracy – Great
Speed – Fast
Price - $3100
Secondary Fire – Silencer

Steyr Aug A1 (Bullpup)
Nickname: Aug

Damage – 22
Ammo Capacity – 30
Accuracy – Great
Speed – Fast
Price - $3500
Secondary Fire – Scope

Sig 551 (Kreig 552)
Nickname: Sig

Damage – 22
Ammo Capacity – 30
Accuracy – Great
Speed – Fast
Price - $3500
Secondary Fire – Scope

AWARDS

- Best Rifle – M4a1

- Very stable, accurate, powerful

- Best Rifle for Noobies – M4a1

- Spray, Pray, headshot, reload.

- Best Rifle for Headshots –Famas

- Put on the 3-rnd burst, aim high, and they are dead.

- Best Rifle with scope – Sig 551

- Better than AUG because it looks better, thats pretty much it.

SNIPER RIFLES:

Steyr Scout (Schmidt Scout)
Nickname: Scout

Damage – 63
Ammo Capacity – 10
Accuracy – Perfect
Speed – Fast
Price - $2750
Secondary Fire – Scope

AI L96 Arctic Warfare (Magnum Sniper Rifle)
Nickname: AWP

Damage – 100+
Ammo Capacity – 10
Accuracy – Good
Speed – Slow
Price - $4750
Secondary Fire – Scope

Sig 550 Sniper (Kreig 550 Commando)
Nickname: 550

Damage – 50
Ammo Capacity – 30
Accuracy – Good
Speed – Very Fast
Price - $4200
Secondary Fire – Scope

H&K G3 SG1 (D3/AU-1)
Nickname: G3

Damage – 65
Ammo Capacity – 20
Accuracy – Good
Speed – Very Fast
Price - $5000
Secondary Fire – Scope

AWARDS

- Best Sniper Rifle  AWP (I dislike it)

- Very controversial, but you can’t beat it.

MACHINE GUNS:

FN M249 Para (M249)
Nickname: Para

Damage – 23
Ammo Capacity – 100
Accuracy – Bad
Speed – Very Fast
Price - $5750

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Hope it's useful for Beginners that are new to this, & Pro's who would like to revise their info

wonderful job man..

Copy+Paste?
Should give us the source or atleast give credit.
Good guide anyway.

AWARDS

- Best Rifle – M4a1

- Very stable, accurate, powerful

- Best Rifle for Noobies – M4a1

- Spray, Pray, headshot, reload.

- Best Rifle for Headshots –Famas

- Put on the 3-rnd burst, aim high, and they are dead.

Which rifle is the best is definitely debatable, and it is not true that the m4 is better than the ak. The m4 is probably better for people who do not aim at heads as often, because aks basically need 1 shot to a head to kill, and m4s often need 2. Also, I think that it's commonly accepted that aks are much easier to get many headshots with when compared with the famas.

I agree with pretty much everything else you said though!  Good job

Copy+Paste?
Should give us the source or atleast give credit.
Good guide anyway.

I assembled the guide from various Sources, and from CSS it self, and from my Experience too.
Credits goes back to the creator of CSS
Thanks for the review any way

Which rifle is the best is definitely debatable, and it is not true that the m4 is better than the ak. The m4 is probably better for people who do not aim at heads as often, because aks basically need 1 shot to a head to kill, and m4s often need 2. Also, I think that it's commonly accepted that aks are much easier to get many headshots with when compared with the famas.

Well for aiming it is obvious that M4 is the best, but yes i agree with u (Ak) does more Damage, and its better for headshots.

Nice job, although the damage isn't necessarily accurate (varying distance, against armor or not, leg/chest/arm/head shot).

Nice job, although the damage isn't necessarily accurate (varying distance, against armor or not, leg/chest/arm/head shot).

Well yes, but the Guide is about General Situations.

we all should learn from helmut, even if helmut joins ct team, i never saw him using M4 he always picked up a dropped AK, a free lesson right here! :

if anything is controversial its the autosniper, only recently have i seen people using it on a roundly basis in pubs, between the years of 04-10 id rarely EVER see anyone using auto, its just nub and dumb.

we all should learn from helmut, even if helmut joins ct team, i never saw him using M4 he always picked up a dropped AK, a free lesson right here! :

A headshot with the m4 against somebody with Head Armor is 88-91 damage whereas the Ak47 is 121-125.