Perfect Dark

This is probably one of the hardest achievements to get in the game. A lot of the earlier challenges are easy but some of the later ones are pretty hard and you will find yourself up against DarkSims a few times!

Tips:

1. Learn the levels beforehand, getting to know where all the good items spawn or where shields may be can be a life saver.
2. While it may be easier for some people using more players, doing so will add more simulants.
3. Use laptop gun sentrys where available (especially on defence challenges)
4. Below is a list of the challeges. The challenges are set out like so:
   
   Scenario *Allies v Simulants (No. Simulants 1P) on Level [Difficulty]

• 1 - Combat v Meatsims (1) on Skedar [Easy]
• 2 - Combat v Meatsims (1) on Area 52 [Easy]
• 3 - Combat v Meatsims (1) on Pipes [Easy]
• 4 - King of the Hill v Meat & Easysims (1) on Skedar [Easy]
• 5 - Combat v Meat & Easysims (1) on Complex [Easy]
• 6 - Hold the Briefcase v Meat & Easysims (4) on Area 52 [Easy]
• 7 - King of the Hill v Easysims (1) on Warehouse [Easy]
• 8 - Capture the Case v Easysims (1) on Skedar [Easy]
• 9 - Combat v Normalsims (1) on Ravine [Easy]
• 10 - Capture the Case v Easysims (1) on Temple [Easy]
• 11 - King of the Hill v Normalsims (1) on Complex [Medium]
• 12 - Combat v Hardsims (1) on Skedar [Medium]
• 13 - Combat v Normalsims (1) on G5Building [Easy]
• 14 - Capture the Case v Normal & Easysims (2) on Area 52 [Easy]
• 15 - Hold the Briefcase v Normal & Meatsims (2) on Grid [Easy]
• 16 - Combat v Perfectsims (1) on Felicity [Medium/Hard]
• 17 - King of the Hill v PerfectSims (1) on Temple [Medium]
• 18 - King of the Hill v Perfect & Mediumsims (2) on Villa [Hard]
• 19 - Combat v Hard & Normalsims (2) on G5 Building [Hard]
• 20 - Combat *Normalsims v Hardsims on Sewers [Medium]
• 21 - Hacker Central v Hardsims (1) on Grid [Hard]
• 22 - Hold the Briefcase v Perfect & Normalsims (2) on Base [Hard]
• 23 - Combat v Hardsims (2) on Complex [Medium/Hard]
• 24 - Capture the Case v Easysims (4) on Fortress [Medium]
• 25 - Combat v Hardsims (1) on Ravine [Medium]
• 26 - King of the Hill v Perfect & Hardsims (2) on Ruins [Hard]
• 27 - Hacker Central v Perfectsims (1) on Sewers [Hard]
• 28 - Capture the Case v Darksims (2) on Villa [V.Hard]
• 29 - Combat v Darksims (2) on G5 Building [V.Hard]

There are a few in-depth guides kicking about on the internet:

1. Perfect Dark Recon
2. GameFAQs

When you have completed all 29 of the Challenges your rightfully earned achievement should unlock!