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Xbox 360 - The History Channel: Civil War - Secret Missions cheats

Achievements:
Complete the following achievements to award the indicated amount of 
Xbox Live Gamerscore points. 

Sprint to the Finish (20 gamerscore points): 
Awarded for completing a mission below the target time. 

Marksman (10 gamerscore points): 
Awarded for completing a mission with over 75% accuracy. 

Bullseye (30 gamerscore points): 
Awarded for completing a mission with over 95% accuracy. 

To the Letter (40 gamerscore points): 
Awarded for completing all bonus objectives. 

Minuteman Medal (50 gamerscore points): 
Awarded for completing all missions below the target time. 

Cold Harbor (10 gamerscore points): 
Awarded for completing Dr.Gatling`s Secret Weapon mission. 

Attention to Detail (5 gamerscore points): 
Awarded for completing one bonus objective. 

Vicksburg (10 gamerscore points): 
Awarded for completing the Captain Blazer`s Scouts mission. 

Chancellorsville (10 gamerscore points): 
Awarded for completing the Dawn at Chancellorsville mission. 

Vicksburg Gate (10 gamerscore points): 
Awarded for completing The Fall of Vicksburg mission. 

War Survivor (20 gamerscore points): 
Awarded for completing the game on the easiest difficulty level (or higher). 

War Hero (75 gamerscore points): 
Awarded for completing the game on the hardest difficulty level. 

War Veteran (40 gamerscore points): 
Awarded for completing the game on the medium difficulty level (or higher). 

Hampshire (10 gamerscore points): 
Awarded for completing The Gray Ghost mission. 

Martinsburg (10 gamerscore points): 
Awarded for completing The Great Train Raid of 1861 mission. 

Jackson (10 gamerscore points): 
Awarded for completing the Infiltration of Jackson mission. 

Lynchburg (10 gamerscore points): 
Awarded for completing the Sabotage at Lynchburg mission. 

Gettysburg (10 gamerscore points): 
Awarded for completing the Sharpshooters at Devil`s Den mission. 

Ironclad (10 gamerscore points): 
Awarded for completing the Siege of Vicksburg mission. 

Grand Gulf (10 gamerscore points): 
Awarded for completing the USS Pittsburgh mission. 

Captain (30 gamerscore points): 
Achieve Captain rank. 

Colonel (40 gamerscore points): 
Achieve Colonel rank. 

Corporal (15 gamerscore points): 
Achieve Corporal rank. 

General (50 gamerscore points): 
Achieve General rank. 

Lieutenant (25 gamerscore points): 
Achieve Lieutenant rank. 

Major (35 gamerscore points): 
Achieve Major rank. 

Pioneer (10 gamerscore points): 
Achieve Pioneer rank. 

Sergeant (20 gamerscore points): 
Achieve Sergeant rank. 

Cannons Away (20 gamerscore points): 
Awarded for killing 25 enemies using cannons. 

Close Combat (20 gamerscore points): 
Awarded for killing 25 enemies using melee attacks. 

Reporting for Duty (25 gamerscore points): 
Awarded for killing 250 enemies. 

Gat-slinger (20 gamerscore points): 
Awarded for killing 50 enemies using Gatling Guns. 

Raining Grenades (20 gamerscore points): 
Awarded for killing 50 enemies using grenades. 

Quick Draw (20 gamerscore points): 
Awarded for killing 50 enemies using sidearms. 

More Than Enough (50 gamerscore points): 
Awarded for killing 500 enemies. 

Tough Guy (75 gamerscore points): 
Awarded for killing 750 enemies. 

Sniper (5 gamerscore points): 
Awarded for killing 75 enemies by head shots. 

Demolitions (50 gamerscore points): 
Shoot all explosive barrels in every mission. 

Overachiever (50 gamerscore points): 
Awarded for completing a mission below the target time and completed 
all the bonus objectives. 

Secret achievement:
Unknown.