| Achievement | How to unlock
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| - AMASS 100 DOG TAGS IN A SINGLE GAME.
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| - KILL 100 ENEMIES IN A SINGLE GAME.
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| - KILL 1000 ENEMIES IN A SINGLE GAME.
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| - AMASS 200 DOG TAGS IN A SINGLE GAME.
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| - KILL 500 ENEMIES IN A SINGLE GAME.
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| - KILL 2500 ENEMIES WHEN PLAYING INFINITE MODE.
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| - DEFEAT ANY BOSS WITHOUT TAKING A HIT.
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| - COMPLETE THE GAME ON 'EASY'.
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| - ACHIEVE AN S RANK IN THE DUNES.
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| - COMPLETE THE FACILITY AREA.
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| - ACHIEVE AN S RANK ON THE FACILITY AREA.
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| - COMPLETE THE FOREST AREA.
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| - ACHIEVE AN S RANK IN THE FOREST.
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| - COMPLETE THE GAME AND RECEIVE THE GOOD ENDING.
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| - COMPLETE THE GAME ON 'HARD'.
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| - ACHIEVE AN S RANK IN THE HQ.
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| - ACHIEVE AN S RANK IN THE LAB.
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| - MAX OUT ALL OF YOUR STATS.
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| - SCORE A MILLION POINTS OR MORE.
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| - ACHIEVE AN S RANK IN THE NEST.
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| - RESCUE ALL HOSTAGES IN A SINGLE GAME.
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| - COMPLETE THE PERIMETER AREA.
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| - ACHIEVE AN S RANK ON THE PERIMETER AREA.
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| - COMPLETE AN AREA WITHOUT ROLLING.
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| - KILL 100 ENEMIES WITH YOUR MELEE ATTACK IN A SINGLE GAME.
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| - COMPLETE THE GAME WITH TWO PLAYERS.
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| - VISIT EVERY ROOM IN THE GAME.
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| - KILL 5 ENEMIES OR MORE WITH A SINGLE EXPLOSION.
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