Complete each of the following achievements below to get the allotted gamerscore:
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There Is Only War (25) → Terminate 500 Enemy Targets.

Death from Above (10) → Kill 20 enemies using Assault Jump.

Sweeping Advance (10) → Kill an emey who is retreating.

Emperor's Champion (10) → Kill a boss using only your Force Commander.

Lightning Assassin (10) → Kill a boss in less than one minute.

Welcome to Calderis (15) → Complete "Stand With Your Brothers" and "Retake the Hamlet".

Rant All You Will (30) → Complete "The True Enemy".

The Cleansing Begins (30) → Complete "The Defense of Argus Gate".

Astronomical! (30) → Recover the data from the Astronomic Array.

Even In Death I Still Serve (30) → Complete "Into the Hive".

Heroes of Angel Gate (30) → Complete "Secrest of Angel Forge".

Fight to Survive (40) → Complete Campaign on Recruit difficulty.

Hold back the Xenos (40) → Complete Campaign on Sergeant difficulty.

Win the War (40) → Complete Campaign on Captain difficulty.

Allies to the Cause (10) → Complete a mission in co-op mode.

Allies to the Chapter (25) → Complete 15 mission in co-op mode.

Battle Brothers (50) → Complete the Campaign in Co-op mode.

Dug In (10) → Successfully defend 5 Strategic Assets.

Massacre (10) → Complete 10 missions in a row without failing.

Not one inch. (10) → Defend a province without losing a single generator.

That's Close Enough (10) → Complete a mission with only ranged weapons.

Rush 'em (10) → Complete a mission under five minutes.

Purge the Xenos (10) → Earn a 5 star Fury rating.

Feel No Pain (10) → Earn a 5 star Resilience rating.

Fleet of Foot (10) → Earn a 5 star Speed rating

The Book of Honor (10) → Get 15 stars on one mission.

Fast Attack (15) → Gain a second deployment in a single day.

Tireless warrior (15) → Gain a third deployment in a single day.

Hero of the Imperium (25) → Attain a Campaign Score of over 30,000 points. Earnable in Single Player and by the host in Co-op mode.

Legend (25) → Attain a Campaign Score of over 90,000 points. Earnable in Single Player and by the host in Co-op mode.

In the name of the Emperor (20) → Own all Strategic Assets in a Campaign. Earnable only in Single Player and by the host in Co-op mode.

Elite (10) → Max...