Battlefield 2: Modern Combat Codes -

Unlock all weapons (Campaign)
In the middle of gameplay in the campaign mode hold the left and right bumper buttons and press , , , , , on the D-Pad.

Achievements
Complete each achievement in the specified mode to get the allotted gamerscore:

Admirable (5) - Achieve the maximum star rating in 5 missions or challenges.
Air Force Cross: Campaign (20) - Kill 10 enemies using air based vehicles without losing the multiplier.
Air Force Cross: Online (20) - Kill 10 enemies without dying using air based vehicles.
Alliance (20) - Complete 20 major victories.
Almaty Veteran (5) - Complete all missions in the Almaty region.
Army Cross: Campaign (20) - Kill 10 enemies using land based vehicles without losing the multiplier.
Army Cross: Online (20) - Kill 10 enemies without dying using land based vehicles.
Coalition (50) - Complete 50 major victories.
Commando: Campaign (20) - Kill 4 enemies in a mission using a Knife.
Commando: Online (20) - Kill 4 enemies without dying using a Knife.
Conqueror (5) - Finish top in 5 games.
Dominator (20) - Finish top in 20 games.
Exemplary (50) - Achieve the maximum star rating in all missions and challenges.
Expert Assault: Campaign (25) - Kill 10 enemies using Assault Kit weapons without losing the multiplier.
Expert Assault: Online (25) - Kill 10 enemies without dying using Assault Kit weapons.
Expert Engineer: Campaign (25) - Kill 10 enemies using Engineer Kit weapons without losing the multiplier.
Expert Engineer: Online (25) - Kill 10 enemies without dying using Engineer Kit weapons.
Expert Sniper: Campaign (25) - Kill 10 enemies using Sniper Kit weapons without losing the multiplier.
Expert Sniper: Online (25) - Kill 10 enemies without dying using Sniper Kit weapons.
Expert Special Ops: Campaign (25) - Kill 10 enemies using Special Ops Kit weapons without losing the multiplier.
Expert Special Ops: Online (25) - Kill 10 enemies without dying using Special Ops Kit weapons.
Expert Support: Campaign (25) - Kill 10 enemies using Support Kit weapons without losing the multiplier.
Expert Support: Online (25) - Kill 10 enemies without dying using Support Kit weapons.
Expert Use of Mortar: Campaign (20) - Kill 3 enemies and no allies with a single Mortar Strike.
Expert Use of Mortar: Online (20) - Kill 5 enemies and no allies with a single Mortar Strike.
Grenadier: Campaign (20) - Kill 20 enemies with grenades in a single mission.
Grenadier: Online (20) - Kill 20 enemies with grenades in a single round.
Mangystau Veteran (10) - Complete all missions in the Mangystau region.
Marksman: Campaign (20) - Kill 4 enemies with one clip of a sniper rifle.
Marksman: Online (20) - Kill 4 enemies with one clip of a sniper rifle.
Mechanic: Campaign (20) - Repair 5 allied vehicles in a mission using the Blowtorch, at least 1/3rd armour must be repaired.
Mechanic: Online (20) - Repair 5 allied vehicles without dying using the Blowtorch, at least 1/3rd armour must be repaired.
Medic: Campaign (20) - Heal 4 allies without dying using the Auto Injector, at least 1/3rd health must be restored.
Medic: Online (20) - Heal 4 allies without dying using the Auto Injector, at least 1/3rd health must be restored.
Meritorious (20) - Achieve the maximum star rating in 20 missions or challenges.
Navy Cross: Campaign (20) - Kill 5 enemies using water based vehicles without losing the multiplier.
Navy Cross: Online (20) - Kill 5 enemies without dying using water based vehicles.
Practiced (5) - Participate in 50 game sessions.
Qyzylorda Veteran (25) - Complete all missions in the Qyzylorda region.
Sapper: Campaign (20) - Kill 20 enemies using C4 or Landmines in a single mission.
Sapper: Online (20) - Kill 20 enemies using C4 or Landmines in a single round.
Seasoned (20) - Participate in 200 game sessions.
Team (5) - Complete 5 major victories.
Veteran (50) - Participate in 500 game sessions.
Victorious China (30) - Complete all China missions.
Victorious NATO (30) - Complete all NATO missions.