Country Achievements
Four achievements for Call of Duty 3 pertain to the soldier you use to complete missions. To earn the American Infantryman award, complete two of your missions using an American soldier. For the British Commando award, complete two missions using a British soldier. Canadian Highlander is awarded to players using a Canadian soldier to complete two missions and Polish Tanker is awarded to players using a Polish soldier for two missions. The American Infantryman and British Commando awards are both worth 20 Gamerscore points, the Canadian Highlander achievement is worth 10 Gamerscore points and the Polish Tanker award is worth 15 Gamerscore points.
Multiplayer
There are nine different achievements that can only be earned during multiplayer Call of Duty 3 ranked match play. The two basic multiplayer achievements are Doc, which is earned by healing ten teammates without registering one team kill, and Supply Officer, which is earned by giving ammunition to twenty teammates during a match. The Doc achievement is worth 30 Gamerscore points, while Supply Officer is worth 15 Gamerscore points.
Two of the Call of Duty 3 multiplayer achievements are end game awards. A War Hero is awarded to the player who earns the highest score on the winning side during ranked match play. The Victory Medal is awarded to any player capturing the final objective in the War game mode during ranked multiplayer match play. Both A War Hero and Victory Medal are worth 30 Gamerscore points.
The last five multiplayer achievements are awarded for cumulative achievement during Call of Duty 3 ranked match play. Lieutenant, which awards 20 Gamerscore points, is awarded to a player earning 200 total points during match play. Captain, worth 40 Gamerscore points, is awarded for players reaching 2,000 total points during match play. Major, worth 60 Gamerscore points, is awarded for 8,000 total points during match play. Colonel, worth 80 Gamerscore points, is awarded for 20,000 total points during match play. General, worth 120 Gamerscore points, is awarded for 40,000 total points during match play.
Weapons Awards
Three Call of Duty 3 achievements are awarded to players who can complete a mission using a specific gun type. Rifleman is awarded to a player for surviving while exclusively using bolt action rifles, such as the Springfield. Players beginning Chapter 3 or 6 of gameplay will begin with a soldier that is equipped with a bolt action rifle. Assault Trooper is awarded to a player who completes a mission while exclusively using assault rifles, such as the M1 Garand. Players beginning Chapter 2 of gameplay will begin equipped with an assault rifle. Battlefield Scavenger is awarded to players who complete a mission managing to use only weapons dropped by dead German soldiers. Rifleman, Assault Trooper and Battlefield Scavenger are all worth 15 Gamerscore points. If you want to earn one of these achievements but you don't start with the gun you need, use melee attacks, as they will not count against these achievements.
Also available as an achievement is Hot Potato, which is awarded to a player who picks up and returns five live grenades during the course of a mission. The Hot Potato achievement is worth 25 Gamerscore points.
Minimalist Achievements
A number of achievements are available to players who manage to complete missions by taking a minimal amount of damage or using a minimal amount of ammunition. A player is awarded the Conservationist achievement by completing a mission while firing less than 300 rounds of ammunition. The Conservationist award is worth 20 Gamerscore points. Close Quarter Combatant is awarded to players who manage to survive an entire mission without firing one gun. This achievement, worth 100 Gamerscore points, can be accomplished by executing only melee weapons attacks or hand attacks. Chapter 2 is recommended as a good candidate to choose when trying to earn Close Quarter Combatant.
Allergic to Bullets is an achievement awarded to players who manage to survive through a mission while being hit less than 30 times by opponent weapons. Allergic to Bullets is worth 25 Gamerscore points. Still Ticking is awarded to a player who completes a mission without using a single checkpoint or dying once. Still Ticking is worth 30 Gamerscore points. Allergic to Bullets and Still Ticking are easiest to attain on Chapter 1, but you will need to proceed with the utmost caution.
Single Player Campaign
Achievements can be earned for completely finishing the single player campaign mode of Call of Duty 3. Won the War, worth 80 Gamerscore points, is awarded to a player who completes the campaign mode using any difficulty level. Grizzled Veteran, worth 150 Gamerscore points, is attained by players for completing the campaign mode on Veteran, the hardest difficulty setting.
Secret Awards
Two of the achievements available during Call of Duty 3 game play are not displayed in the list available through the Xbox console. Because their identity is hidden in the game, they are considered "secret" awards. These secret awards are Purple Heart and Big Air. The Purple Heart achievement is awarded to a player who finishes a mission despite dying multiple times. This can be achieved during any level by "overcooking" grenades, or holding on to a grenade until it blows up. Dying 20 times in this manner will earn you the Purple Heart achievement, worth 5 Gamerscore points, upon completion of the mission. Big Air is awarded to a player who can attain a high jump while driving a vehicle. Most of the missions including vehicle use will have ramps that can be utilized to attain Big Air. If you are driving a Vera, you can launch your vehicle by hitting a fallen tree at high speeds.