Read the Consolegaming rules.
It's really important because if u use something thats illegal u'll ruin it for the clan

CG v1 Ruleset (14th November 2009)

Customisation Restrictions:

Allowed Perks:
Perk 1: Bling, Sleight of Hand, Marathon, Scavenger
Perk 2: Stopping Power, Lightweight
Perk 3: Ninja, Commando, Scrambler

Weapon Restrictions:
Mounted Machine Gun (MMG)
Light Machine Guns (LMG)
Automatic-Shotguns - (AA-12 & Striker)
Automatic-Snipers - (.50cal, WA2000, M21)
P90
Grenade Launchers

NOTE: All Launchers are banned unless airsupport is turned ON in the challenge.

Attachments & Equipment:
Allowed Attachments: Red Dot, Silencer, Holographic, ACOG, Tactical Knife, Full Metal Jacket, Foregrip
Allowed Equipment: Frags, Semtex, Throwing Knife, Smoke, Flash
Death Streak: Copycat

General Settings:

Team Options:
Spectating: Team only
Wave Spawn Delay: None
Force Respawn: Enabled
Radar always On: No
Friendly Fire: Enabled

Player Options:
Max Health: Normal
Health Regeneration: Normal
Allow Killcam: Enabled
Allow Sprint: Enabled

Gameplay Options:
Headshots Only: Disabled
Allow Perks: Enabled (See below)
Old School Mode: Disabled
Hardcore Mode: Disabled
Airsupport / Killstreaks: See Challenge

Mode Settings:

Domination:
Number of Lives: Unlimited
Respawn Delay: 7.5 Seconds
Time Limit: 10 Minutes
Score Limit: Unlimited
Aggregate Scoring (Best of Two)

Demolition:
Respawn Delay: 5 seconds
Round Length: 3 Minutes
Bomb Timer: 45 Seconds
Plant time: 5 Seconds
Defuse time: 5 Seconds
Time Extended: 2 Minutes
Round Switch: Every Round
Best of Three Rounds

Capture the Flag:
Time Limit: 10 minutes
Respawn delay: 5 seconds
Number of lives: Unlimited
Score Limit: Unlimited
Best of Three Rounds

Sabotage:
Round Length: 10 minutes
Respawn Delay: 7.5 seconds
Plant Time: 5 seconds
Defuse Time: 5 seconds
Bomb Timer: 45 seconds

Score Limit: 1
Best of Three Rounds

S&D:
Time Limit: 3 minutes
Plant time: 7.5 seconds
Defuse time: 7.5 seconds
Bomb Timer: 45 seconds

Score Limit: 4
Switch Sides: Every Round
Best of Three Rounds