Complete the following achievements to unlock Microsoft Gamerscore points.
Achievement | How to unlock | Points
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- A Personal Friend of Mine
| - Level a weapon to four stars.
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| - Finish a mission on Extreme Difficulty.
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| - Level thirty weapons to four stars.
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| - Kill thousand enemies with fire.
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| - Return 39 pieces of intel.
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| - Do a successful Challenge run.
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| - Finish a mission on Intense Difficulty.
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- Expeditionary Service Ribbon
| - Finish all Campaigns on Standard Difficulty.
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| - Change your hat and outfit.
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| - Fill every slot in a perk board.
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| - Finish the "Giants in the Earth" Campaign.
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| - Eliminate 1000 Synthetics.
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| - Complete a mission without using aid kits, ammo crates, or consumables.
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| - Kill thousand enemies with electricity.
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| - Get grappled five times in the same mission.
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| - Kill fifty enemies with explosive barrels or pods.
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- It's Camouflage on Some Planet
| - Collect fourty colorways.
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| - Eliminate 10000 Xenomorphs.
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| - Open fifty hidden caches.
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| - Level five Kits to Rank 8.
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| - Finish all Campaigns on Extreme Difficulty.
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| - Finish all Campaigns on Intense Difficulty.
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| - Finish a mission on Insane Difficulty.
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- Nukes, Knives, AND Sharp Sticks
| - Equip three attachments on a single weapon.
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| - Complete 25 successful Challenge runs.
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| - Finish the "Priority One" Campaign.
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- Red Makes It Shoot Faster
| - Equip a colorway and decal onto a gun.
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| - Finish all Campaigns on Insane Difficulty.
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- State of the Art Firepower
| - Collect one attachment of every type.
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| - Complete fifty missions without anyone being downed.
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| - Heal your fireteam with an aid kit hundred times.
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| - Finish the "Gift of Fire" Campaign.
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| - Finish the "Only Way to be Sure" Campaign.
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| - Eliminate 2000 elite enemies.
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| - Complete a mission on Intense Difficulty or above without anyone taking friendly fire damage.
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