• Chico's Tape 1 - Complete Intel Operative Rescue mission;
  
• Chico's Tape 2 - Located at central control tower in Ground Zeroes;
  
• Chico's Tape 3 - Rescue Chico first and put him into helicopter;
  
• Chico's Tape 4 - Rescue escaped prisoner (can be found in west refugee camp) and put him into helicopter;
  
• Chico's Tape 5 - Before rescuing Chico, go to admin building exterior. There's small area with dumpsters next to stairs leading to the basement. It can only be found before rescuing Chico;
  
• Chico's Tape 6 - South armory (= red door next to AA gun near GZ starting point) during Eliminate the Renegade Threat mission;
  
• Chico's Tape 7 - Rescue MSF Intel Team member during Destroy the Anti-Air Emplacement mission (can be found in same room where Paz was);
  
• Chico's Tape (All) - Automatically earned after collecting all Chico's Tapes;
  
• Agent's recording - Located at central control tower in Classified Intel Acquisition mission;
  
• Classified Intel Data - Interrogate bald soldier in admin building basement during Classified Intel Acquisition mission. Note that soldier changes position if you collect Agent's recording or cause combat status;
  
• Ground Zeroes music - Located prison cage behind Chico's cage during Ground Zeroes mission;
  
• Deja vu/ Jamais Vu music - Located near LZ north of starting point during Deja/Jamais Vu mission;
  
• Zone of the Enders: Second Runner - Complete all missions on Hard mode.

A video by: PowerPyx.

In order to achieve percentages, you need to complete trials you unlocked by completing the mission. That means you have to tag all enemies on all missions (except Intel Operative Rescue) and complete each mission at least twice on Hard (one to unlock Fastest Completion Time, one to set score for it and one for S rank).


- Do NOT kill enemies that you haven't tagged.

The trial will automatically fail if you kill enemy that haven't been tagged, meaning you have to either start mission from beginning or from checkpoint.

- Remain undetected

The trial will be much easier if you stay undetected until all enemies are tagged. There are several missions where some enemies will leave the mission area (you don't have to tag these enemies) if you don't get spotted or leave neutralized enemies in their patrol route.

If you get detected, guards will change their patrol routes and it takes longer for them to return to their original position.

- Grid search

You have easiest time if you search enemies using grids. Make sure you search almost every corner of the area before moving into the next one. If for some reason you can't find them, it's easier to recheck grid than searching random.

- And in case you still can't find them

Blow up truck, AA- gun or destroy surveillance cameras in order to make some enemies arrive near them.

As for other trials - there aren't any general hints as fastest completion time only requires you to complete the mission on Hard difficulty - you can restart checkpoints as many times as you want.

Unlike Peace Walker, you can now kill and/or get spotted and still get S rank. But if you do that, it usually requires to rescue some (if not all) POWs in the area or do the mission very quickly.

You will receive negative points for each kill, each combat alerts, each time helicopter gets destroyed and each time you retry from checkpoint.

You will receive 0 points if you use reflex, don't lose helicopters and don't achieve special objective (different for each mission).

You will earn additional points if you don't get spotted, don't kill anyone, rescuing POWs, don't use retries or reflex and achieve special objective.

Special objectives for each mission:

• Ground Zeroes - Rescue Escaped Prisoner (Chico's Tape 4);
  
• Eliminate the Renegade Threat - Both Targets Recovered;
  
• Intel Operative Rescue - N/A;
  
• Classified Intel Acquisition - Classified Intel Recovered (Classified Intel Data);
  
• Destroy the Anti-Air Emplacements - Mother Base Agents Recovered (Chico's Tape 7);
  
• Deja/ Jamais Vu - Scenes Recreated (Required to complete all in order to achieve S rank);