Unlock the following costumes by performing the corresponding tasks:
COSTUME - HOW TO UNLOCK Amanda - Extra Op 67 with an "S" rank. AUSCAM - Main Op - Barricade Destruction. Bad Smell - Extra Op 61 with an "S" rank. Battle suit with helmet - Randomly appears when fighting "SS" rank matches in Outer Ops. Battle suit - Main Op - first Peace Walker battle. Bikini - On the bridge after you complete Extra Op 68 with an "S" rank. Black, khaki, navy blue, white, red, yellow, pink, etc. - Bonus downloadable content. Choco-chip - Extra Op 45 with an "S" rank. Gear Rex - Extra Op 125 with an "S" rank. J. Fatigue - Available by default. Leaf - Extra Op 14 with an "S" rank. Liolaeus (Rathalos) - Extra Op 121 with an "S" rank. Miller - Extra Op 68 with an "S" rank. Naked (AUSCAM) - Extra Op 30. Naked (chocolate) - Outer Op. Naked (Leaf) - Outer Op. Naked (with black, khaki, navy blue, red, etc.) - Bonus downloadable content. Naked (Snake) - Main Op - Tropical Cloud Fog Forest. Naked (Splitter) - Extra Op 29 or Outer Op. Naked (Tiger Stripe) - Main Op - Pursuing Amanda. Naked - Available by default. Neo Moss - Use CODEC to communicate with the ghosts until they say "The End" in Extra Op 62. Snake - At the concrete area where the lumber is stacked in Extra Op 16. Sneaking Suit - Main Op - Combat helicopter - Mi-24A. Splitter - Extra Op 29 or on top of a box in Extra Op 59. Square - Extra Op 30. Swimming trunks - On the bridge after completing Extra Op 67 with an "S" rank. Tiger Stripe - In Bananal Fruta De Oro sorting shed at the office in the north end in Main Op - Pursuing Amanda. Tigrex - Extra Op 123 with an "S" rank. T-shirt - Second floor in Extra Op 1. Tuxedo - Chapter 4.