Always shoot hinges or locks instead of blowing them because it is quieter. Always crouch behind objects and make sure that your squad is with you shooting or you will easily die. Shoot through car windows, as they are a useful shield.Cheat mode
Spend the indicated amount of Intel points at the "Special Features" menu to acquire the corresponding cheat. To activate them, pause the game, then select the "Enter Cheat Code" selection at the options menu. If you entered the code correctly, the name of the code will appear. Repeat the code to disable its effect.
- Ghost Mode (250 Intel Points): Press Up(2), Left, Right, Down(2).
- Team God Mode (450 Intel Points): Press Left, Down, Up(2), Right, Left.
- Fast Movement (450 Intel Points): Press Left(3), Right(3).
- Infinite Ammo (550 Intel Points): Press Up, Down, Up, Down, Left, Right.
- Infinite Items (550 Intel Points): Press Left, Right, Left, Right, Up, Down.
- God Mode (600 Intel Points): Press Up, Right, Left, Up, Down(2).
- One Shot Kills (600 Intel Points): Press Up(3), Left(3).
- Increased Force (650 Intel Points): Press Right(3), Down(3).
- Invisible (900 Intel Points): Press Down(3), Up(3).
Achieve one of the following goals on Xbox Live to unlock the corresponding medal:
- Biohazard: Retrieve the canister 100 times
- Communications Specialist: 250 Total Conquest captures
- Interceptor: Get 100 flag carrier kills
- Mercenary: Get 100 kills
- Perfect Attendance: Play seven consecutive days
- Purple Heart: Get killed 100 times
- Sapper: Plant 500 explosives (no kills required)
- Veteran: Visit all modes on all levels for each mode (Total Conquest, Team Sharpshooter, Team Survival, and Retrieval)
- Level 5: Adrenaline Boost
- Level 10: Light Armor
- Level 15: Nerve Gas
- Level 20: Feild Clinic
- Level 25: Shotguns
- Level 30: Free Gas Mask
- Level 35: Medium Armor
Starts with: Pistols, Sub-Machine Guns, First Aid
- Level 5: Medium Armor
- Level 10: Heavy Weapons
- Level 15: Grenadier
- Level 20: Ballistic Shield
- Level 25: Heavy Armor
- Level 30: Enhanced Recovery
- Level 35: Recoil Control
Starts with: Pistols, Assault Rifles, Toughness
- Level 5: Light Armor, Traps
- Level 10: Hacking
- Level 15: Medium Armor
- Level 20: Deploy Turret
- Level 25: Sub-Machine Guns
- Level 30: Firewall
- Level 35: Demolition Expert
Starts with: Pistols, Shotguns, Electronic Keycard
- Level 5: Sensor Jammer
- Level 10: Light Armor
- Level 15: Assault Rifles
- Level 20: Medium Armor
- Level 25: Knife Attack
- Level 30: Adv. Heat Sensor
- Level 35: Critical Hit
Starts with: Pistols, Submachine Guns, Surveillance PDA