from
MGSV - The little gameplay details that caught your attention - NeoGAF
- if you have the toilet tape, when you use it in a toilet soldiers will avoid that area.
- putting an enemy to sleep in water makes them eventually drown
- if you throw a grenade into a group of soldiers one of them will dive on it to save the others
- there is a lullaby tape that will make soldiers fall asleep
- the game adapts to your playstyle. keep shooting ppl in the head, they all start wearing helmets. use lots of grenades, more vests, anti-sniper if you snipe a lot, etc
- you can knock someone out throwing a magazine at their head
- if you do a ton of missions back to back snake starts having an IV hooked up to him in the chopper
- if you do a ton of missions and never use the shower there is an extra cutscene when you go back to MB
- if you go back to MB on your birthday there is a bonus cutscene
- some enemy soldiers will drop their gun if you point your weapon at them. do this a lot and decoys start showing up at outposts
- once your intel team starts up, you can spot them sneaking around while you are out on missions
- you can shoot down power lines and it will electrocute soldiers if its raining
- for the decoy, if you throw the decoy and wait for them to walk over before activating it, the popout will knock the first soldier out
- there is some crazy shit you can do with cardboard boxes and side graffiti, like having a bunch of soldiers admiring chicks or saluting
- you can turn the lights off in a truck, duck down, and let it coast through an outpost. all the soldiers won't see you and wonder out loud what the fuck is going on
there are dozens more like that