The easiest way to complete the Campaign and to do it quickly is to use the cheats below (listed below in another tab). They will not affect achievements, however you MUST enter them after EVERY extraction (beginning a new level) for them to work. You will hear a sound if they are entered correctly.
Unfortunately playing the game on Hard will not unlock Normal, but since you are cheating and can't die, it is relatively painless to play the campaign twice.
As for the multiplayer achievements, some can actually be done locally with a second controller, while others, you need at least five Gamertags in the room for it to count.
The first 700 points are easy with rest very time consuming.
ACHIEVEMENT GUIDE
Heavyweight (Multiplayer) - 24 points
Get a total of 10,000 kills in multiplayer
This achievement sounds cool and probably quite hard doing legit. Plug in a second controller and start a co-op Objectives or co-op Territories. Set the respawns and enemy density to infinite in Advanced Options. Set the match to 60 mins. Just stick close to your base and kill them as they advance towards you.
On the Wharf Map , they spawn on the beach, so head down there with a grenade launcher and you can rack up about 10 - 15 at a time.
Deadly (Multiplayer) - 20 points
Get 4 kills in 4 seconds or less in multiplayer
You should get this while going for Heavyweight Achievement. Heading down to the beach on the Wharf Map with a grenade launcher will easily unlock this. Or wait until there is a group of enemies heading towards you, them let them have it.
Unyielding (Multiplayer) - 32 points
Get 30 kills before being killed in multiplayer
Another Multiplayer achievement that sounds hard, but so, so easy. Stick in another controller and start a Solo Elimination match. Set the re-spawns to infinite. Just shoot the second controller 30 times in a row. Try doing head shots, as it will help you get the "Sniper" achievement.
Once the second controller is killed, you can choose the re-spawn point using the second controller, so make sure you choose a point right next to the first controller. Otherwise you will spend a lot of time searching for the second controller.
Falcon (Multiplayer) - 16 points
Shoot down 100 helicopters in multiplayer
Set up a Territory game Hamburger Hill with a second controller. Whoever controls the hill, will have control of the helicopter. So send the second controller to run up to the hill and the then wait for the helicopter to spawn. Shoot down the helicopters using a Sniper Rifle. Rinse and repeat until you reach 100.
Sniper (Multiplayer) - 36 points
Get a career total of 500 head shots in multiplayer
Use the same method as "Unyielding" achievement above, except brain the second controller. This could be a little time consuming, but with the amount of kills being displayed in the right hand corner of you HUD, it 's quite easy to track. Remember it does not have to be a sniper rifle.
Committed (Multiplayer) - 28 points
Play for 8 hours straight in multiplayer
Here's another achievement you can earn by being asleep! Set a Co-op Elimination game. Set 30 second auto-launch timer and infinite respawns, then set the match 60 mins. Then go to bed. When you wake up, it will pop.
Master of Ceremonies - 24 points
Host at least 1000 matches
Extremely long grind this will be for 24 points. Probably easier if you set re-spawns to one in co-op territories and die straight away. I got to a hundred then my mom had my dinner ready.
Perfect chapter 1 (Multiplayer) - 40 points
Complete all primary and secondary objectives in chapter 1
You need to complete all four missions of Chapter One of Co-op campaign including the side missions (the ones with a yellow dot on the map) The cheats work in co-op.
World Champion (Multiplayer) - 40 points
Climb to the top of the universal leaderboard
Once you got your Solo and Team Champion scores up, you will rise on the universal Leaderboard. See Solo Champion below.
Solo champion (Multiplayer) - 32 points
Climb to the top of the solo leaderboard
There was a time when you could climb to the top and be “World Champion†by using a second controller ( sign in your second controller as a guest into Xbox Live, then win all your matches ) but sadly some spoil sport decided to update the game and take away this absolutely brilliant feature.
It is possible some say to auto-launch a Solo Elimination Ranked Match with a second account (Gamertag) and do it that way, but be warned. There is a guy I heard on there doing this with forty accounts so you will be pretty hard pressed to get near him.
If you want to do it legit, better just play players on higher levels as you rank up quicker.
Team champion (Multiplayer) - 32 points
Climb to the top of the team leaderboard
Same deal with solo above, except auto-launch a team ranked match with two players and let it run. Not sure if this still works and it will probably take a while. Otherwise you will have to do it legit, and play players on higher levels as you rank up quicker.
Coop 1-1 - 8 points
Win missions in the cooperative campaign
The cheats work in the co-op missions. You need to complete all four missions of Chapter one in the co-op campaign.
Coop 1-2 - 8 points
Win missions in the cooperative campaign
See Coop 1-1 achievement above.
Coop 1-3 - 2 points
Win missions in the cooperative campaign
See Coop 1-1 achievement above.
Coop 1-4 - 8 points
Win missions in the cooperative campaign
See Coop 1-1 achievement above.
Assassin (Multiplayer) -15 points
Find and kill an opponent who has the Assassin Achievement
This is a viral achievement. Just enter any Live match and there is bound to be someone who has it and kill them.
Explorer (Multiplayer) - 20 points
Win 5 Team or Solo matches on each original MP map with at least 5 different gamertags in the room
This can be done in Private Player matches so easily boost this achievement. The maps are:
Nowhere
Boneyard
Treasury
Temple
Old Town
Dry Dock
Wharf
Fishing Village
Rocky Cove
Desert Glutch.
Victor (Multiplayer) -10 points
Win a public player match in all original game types with at least 5 different gamertags in the room
Tricky because the fact you have to get five Gamertags and only can be done in Public Player matches.
Team Player (Multiplayer) - 15 points
Win 30 co-op matches with at least 6 gamertags in the room
Because there are no ranked co-op matches, I would try to do this in Private Player and boost it that way.
Crack Shot (Multiplayer) - 15 points
Kill 10 players with gunshots and at least 5 gamertags in the room without reloading or dying
Can be done in Private Player but you need 5 Gamertags in the room. Note: only gunshots and no grenades.
Complete the training mission - 25 points
Complete the training mission
Self -explanatory and pretty short.
Reach Ramirez (normal) - 25 points
Reach Captain Ramirez’s position
If you want to storm through the campaign, then use the cheats. I used Scott Mitchell is Invincible and never bothered about the team too much. Let them die and suffer if you want. You will have to play the campaign twice as the achievements are not stackable.
You must re-enter the cheats after each extraction. You will hear a sound if you have entered the cheats correctly. The missions are very much linear and the objectives pretty standard.
See bottom tab for cheats.
Secure Ballantine (normal) - 25 points
Secure the US president
See Reach Ramirez achievement above.
Escort Ruiz-Pena (normal) - 25 points
Escort the Mexican president to US Embassy
See Reach Ramirez achievement above.
Neutralize rebel outpost (normal) - 25 points
Neutralize a rebel outpost blocking the highway
See Reach Ramirez achievement above.
Eliminate defenses (normal) - 25 points
Eliminate Chapultepek castle defenses
See Reach Ramirez achievement above.
Secure US tanks (normal) - 25 points
Take control of 50 US tanks stolen by rebels
See Reach Ramirez achievement above.
Protect US president (normal) - 25 points
Locate and protect US president
See Reach Ramirez achievement above.
Reach the Football (normal) - 25 points
Reach the Football's location
See Reach Ramirez achievement above.
Clear the way (normal) - 25 points
Clear access to rebel HQ
See Reach Ramirez achievement above.
Capture Ontiveros (normal) - 25 points
Capture General Ontiveros alive
See Reach Ramirez achievement above.
Locate the Football (normal) - 25 points
Take the Football back from Carlos Ontiveros
See Reach Ramirez achievement above.
Secure Ballantine (hard) - 25 points
Secure the US president
See Reach Ramirez achievement above.
Reach Ramirez (hard) - 25 points
Reach Captain Ramirez’s position
See Reach Ramirez achievement above.
Escort Ruiz-Pena (hard) - 25 points
Escort the Mexican president to US Embassy
See Reach Ramirez achievement above.
Neutralize rebel outpost (hard) - 25 points
Neutralize a rebel outpost blocking the highway
See Reach Ramirez achievement above.
Eliminate defenses (hard) - 25 points
Eliminate Chapultepek castle defenses
See Reach Ramirez achievement above.
Secure US tanks (hard) - 25 points
Take control of 50 US tanks stolen by rebels
See Reach Ramirez achievement above.
Protect US president (hard) - 25 points
Locate and protect US president
See Reach Ramirez achievement above.
Reach the Football (hard) - 25 points
Reach the Football's location
See Reach Ramirez achievement above.
Clear the way (hard) - 25 points
Clear access to rebel HQ
See Reach Ramirez achievement above.
Capture Ontiveros (hard) - 25 points
Capture General Ontiveros alive
See Reach Ramirez achievement above.
Locate the Football (hard) - 25 points
Take the Football back from Carlos Ontiveros
See Reach Ramirez achievement above.
Heavyweight (Multiplayer) - 24 points
Get a total of 10,000 kills in multiplayer
Deadly (Multiplayer) - 20 points
Get 4 kills in 4 seconds or less in multiplayer
Unyielding (Multiplayer) - 32 points
Get 30 kills before being killed in multiplayer
Falcon (Multiplayer) - 16 points
Shoot down 100 helicopters in multiplayer
Sniper (Multiplayer) - 36 points
Get a career total of 500 head shots in multiplayer
Committed (Multiplayer) - 28 points
Play for 8 hours straight in multiplayer
Perfect chapter 1 (Multiplayer) - 40 points
Complete all primary and secondary objectives in chapter 1
World Champion (Multiplayer) - 40 points
Climb to the top of the universal leaderboard
Solo champion (Multiplayer) - 32 points
Climb to the top of the solo leaderboard
Team champion (Multiplayer) - 32 points
Climb to the top of the team leaderboard
Master of Ceremonies - 24 points
Host at least 1000 matches
Coop 1-1 - 8 points
Win missions in the cooperative campaign
Coop 1-2 - 8 points
Win missions in the cooperative campaign
Coop 1-3 - 2 points
Win missions in the cooperative campaign
Coop 1-4 - 8 points
Win missions in the cooperative campaign
Complete the training mission - 25 points
Complete the training mission
Reach Ramirez (normal) - 25 points
Reach Captain Ramirez's position
Secure Ballantine (normal) - 25 points
Secure the US president
Escort Ruiz-Pena (normal) - 25 points
Escort the Mexican president to US Embassy
Neutralize rebel outpost (normal) - 25 points
Neutralize a rebel outpost blocking the highway
Eliminate defenses (normal) - 25 points
Eliminate Chapultepek castle defenses
Secure US tanks (normal) - 25 points
Take control of 50 US tanks stolen by rebels
Protect US president (normal) - 25 points
Locate and protect US president
Reach the Football (normal) - 25 points
Reach the Football's location
Clear the way (normal) - 25 points
Clear access to rebel HQ
Capture Ontiveros (normal) - 25 points
Capture General Ontiveros alive
Locate the Football (normal) - 25 points
Take the Football back from Carlos Ontiveros
Secure Ballantine (hard) - 25 points
Secure the US president
Reach Ramirez (hard) - 25 points
Reach Captain Ramirez's position
Escort Ruiz-Pena (hard) - 25 points
Escort the Mexican president to US Embassy
Neutralize rebel outpost (hard) - 25 points
Neutralize a rebel outpost blocking the highway
Eliminate defenses (hard) - 25 points
Eliminate Chapultepek castle defenses
Secure US tanks (hard) - 25 points
Take control of 50 US tanks stolen by rebels
Protect US president (hard) - 25 points
Locate and protect US president
Reach the Football (hard) - 25 points
Reach the Football's location
Clear the way (hard) - 25 points
Clear access to rebel HQ
Capture Ontiveros (hard) - 25 points
Capture General Ontiveros alive
Locate the Football (hard) - 25 points
Take the Football back from Carlos Ontiveros
Explorer (Multiplayer) - 20 points
Win 5 Team or Solo matches on each original MP map with at least 5 different gamertags in the room
Victor (Multiplayer) -10 points
Win a public player match in all original game types with at least 5 different gamertags in the room
Team Player (Multiplayer) - 15 points
Win 30 co-op matches with at least 6 gamertags in the room
Assassin (Multiplayer) -15 points
Find and kill an opponent who has the Assassin Achievement
Crack Shot (Multiplayer) - 15 points
Kill 10 players with gunshots and at least 5 gamertags in the room without reloading or dying