Suside Run!

All you have to do is be the special ops person and stick four things of C-4 on the helicopter and fly it until you want to jump out. Then you exit the helicopter and deploy your parachute and let your helicopter hit the ground and it will blow up. The C-4 will give it a little extra "boom". I use it all the time online.

Multi-player: Ranks

Achieve the indicated number of medals, points per hour (PPH), and points to earn the corresponding rank.

Brigadier General: 12 medals, 19,390 points, 85 PPH
Captain: 8 medals, 8,430 points, 65 PPH
Chief Warrant Officer: 5 medals, 3,700 points, 50 PPH
Colonel: 11 medals, 16,070 points, 80 PPH
Commanding Sergeant Major: 3 medals, 1,820 points, 40 PPH
Corporal: 0 medals, 70 points, 15 PPH
First Lieutenant: 7 medals, 6,560 points, 60 PPH
Five Star General: 15 medals, 32,000 points, 100 PH
Lieutenant Colonel: 10 medals, 13,150 points, 75 PPH
Lieutenant General: 14 medals, 27,330 points, 95 PPH
Major: 9 medals, 10,620 points, 70 PPH
Major General: 13 medals, 23,150 points, 90 PPH
Master Sergeant: 1 Medal(s), 720 points, 30 PPH
Private: 0 medals, 0 points, 0 PPH
Private First Class: 0 medals, 20 points, 10 PPH
Second Lieutenant: 6 medals, 4,900 points, 55 PPH
Sergeant: 0 medals, 190 points, 20 PPH
Sergeant First Class: 0 medals, 390 points, 25 PPH
Sergeant Major: 2 medals, 1,180 points, 35 PPH
Warrant Officer: 4 medals, 2,650 points, 45 PPH

Easy Expert Shooting Medal

Go to the "Backstab" map and play as a sniper. Get to a good location and snipe. Only snipe people who are standing still. Note: This requires patience.

Kamikaze

Be a Special Ops and get out your C4s. Get near a vehicle and put one or two C4s on it. Keep your detonator out and go in the vehicle. When you see an enemy, get out your vehicle so that it's ghost rides into the enemy. When the enemy is near the vehicle, detonate the C4s.

Chinese Restaurant Reference

When you are playing conquest at "Bridge Too Far", go to the Chinese side. When there is no extra battle sound, you can faintly hear music that would be in a Chinese restaurant. Coincidentally, there is a building that looks like a Chinese restaurant in that map.

Unlock All Weapons

The following commands must be input during gameplay and within the span of one second: Hold the LB and BR buttons and press right, right, down, up, left, left.

Gamerscore Points

Accomplish the indicated task to get the corresponding number of Gamerscore points:

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

Get Two Helicopters Easily In Air Traffic Control Level

At the beginning of the Air Traffic Control level, you will start out as a sniper. Directly behind you will be a chopper. Turn around as soon as the level begins to get a good shot. Shoot the pilot and the chopper will fall a short distance directly in front of you. Make sure you hit the pilot, and not the chopper or it will explode. Note: It may require a few attempts to hit the pilot. You can then get in and shoot out the turrets with the chopper. When the jeeps come by, hotswap to one and go directly past the turrets and into the helicopter inside the heliport. You will not have acquired two helicopters, making this level very easy.