Special Camo:
AT-Camo: multiply the camo index of the equipped camo in a NG+ run. To acquire this item, it is necessary to find and shoot all 64 Ga-ko. (for all locations see All Ga-ko Locations Guide)
Moss: replenishes your stamina in outdoor areas and gives you significant camo index (up to 95%) in the grass. Combined with Woodland face paint, it is possible to reach the 100% camo index in the grass. You can obtain the camo by sneaking up on The End and holding him up. One efficient way to achieve this is by using thermal goggles to see his reverse footprints to locate him. Freeze The End moving toward him very, very slow (if you are on NG+ using the Spirit camouflage helps significantly) and then aim at his head until he will say “I don’t think so” twice.
Spirit: makes your footsteps noiseless and when you wear it, using CQC on guards restores your stamina. This camo is very useful to get the Moss camo from The End during a NG+ run. You can get it touching The Sorrow at the end of his boss fight.
Snake: allows you to get significant camo index in many areas. You can acquire it defeating The Boss by tranquillizing her.
Animal: prevents you from shaking while using guns also when your stamina is low, this can help you avoid consuming food in those circumstances. You can obtain the camo defeating Ocelot in a non-lethal way.
Spider: allows you to get significant high camo index in most areas but consumes a lot of stamina, and can be alternated with the Moss camouflage in outdoor areas. You can get the camo tranquilizing The Fear.
Fire: makes you immune from fire. It is very useful against The Fury in a NG+ run. You can obtain this camouflage defeating The Fury in a non-lethal way.
Cold war: this camo is very useful during bike chase. Wear it immediately after it drops following The Volgin battle, so many soldiers won’t shoot you during the bike chase. Moreover, if you don’t aim at a zero alerts run, during normal gameplay wear this camo to have the advantage that enemies shoot you only from behind and not when you face them. You can obtain it defeating Volgin in a non-lethal way.
Hornet Stripe: equipping this camo, when you shoot a hornet’s nest, the hornets harmlessly follow you while attacking enemy guards. It is very useful against The Pain in a NG+ run because it reduces the damage taken from him. You can get it defeating The Pain in a non-lethal way.
Sneaking Suit: reduces damages by half and reduces stamina consumption. It is located in Groznyj Grad Weapons Lab East Wing inside the locker where you found Major Raikov.
Bonus Camo:
Mummy: gives auto-healing from injuries that require a bandage You can get this camo beating the game on any difficult, or selecting “I’m playing the MGS series for the first time” when you start the game.
DPM: gives you double health recovery and stamina rate. You can acquire this camo beating the game on any difficulty, or selecting “I like MGS1” when you start the game.
Auscam: reduces damage taken by 2/3. You can obtain this camo beating the game on any difficulty, or selecting “I like MGS1” when you start the game.
Desert Tiger: grants infinite suppressor use. You can obtain this camo beating the game on any difficulty, or selecting “I like MGS2” when you start the game.
Flecktran: grants infinite battery for thermal goggles. You can acquire this camo beating the game on any difficulty, or selecting “I like MGS3” when you start the game.
Banana: makes all food taste great. You can get this camo beating the game on any difficulty, or selecting “I like MGS Peace Walker” when you start the game.
Grenade: grants infinite grenades. You can acquire this camo beating the game on any difficulty, or selecting “I like everything in MGS series” when you start the game.
Normal Camo:
Fly: Graniny Gorki Lab 1F
Allows that soldiers don’t use the knife on you, because this camo has a bad smell. You can collect it from the third wc of the bathroom.
Splitter: Bolshaya Past South
Useful in urban areas. You can find it at the end of the right path, near the swamp.
Water: Bolshaya Past Base
It grants high camo index when you swim. To pick the camo, climb the ladder of the big building of the area, it is situated on the roof.
Snow: Chyornaya Peschera Cave
It is the best camo for high camo index in The Boss battle. It is located immediately after the tunnel, before The Pain battle.
Choco Chip: Bolshaya Past South
Effective in the desert and in the mountains. It is located inside a tree, near the exit of the area.
Ga-ko: Chyornyj Prud
Allows you to hear kerotan’s sound to better find them. You can find it in the north east shallow water of the area.
Raindrop: Dolinovodno
It grants high camo index during rain. It is situated in an alcove under the bridge
Face Paint:
Zombie: Rassvet
Useful in dark areas. Located out the back of the room building where you find Sokolov.
Snow: Bolshaya Past Base
It is the best face paint for high camo index in The Boss battle, if used together with snow camo. You can collect it in the western trenches.
Desert: Ponizovje Warehouse 1F
Good in desert area when used with Desert camo. You can find it in the very south zone of the building, near the red door.
Oyama: Graniny Gorki Lab 1F
Useful in white areas. You can collect it crawling the duct.
Water: Ponizovje South
It grants high camo index when you swim if used together with water camo. To pick this face paint, it is necessary to backtrack until the very start of the river when you return in Ponizovje South.
Kabuki: Tikhogornij
This face paint is mostly decorative. It is situated below the waterfall.
Bonus Face Paint:
Green: wearing it gives infinite grip gauge. You can acquire this camo beating the game on any difficulty, or selecting “I like everything in MGS series” when you start the game.
Brown: equipping it grants infinite oxygen. You can get this camo beating the game on any difficulty, or selecting “I like everything in MGS series” when you start the game.
Croc Cap: Chyornyj Prud
Equipping it dogs won’t attack you. Swimming with head outside the water, soldiers consider you a crocodile. To pick this item use the ropes on the northwest zone of the area.
Quick version: All MGS Delta Camo and Face Paint: Locations, Effects and Best Camo