Here's one example of interacting with your environment. For example, once you obtain the
Crowbar, besides using it as a melee weapon, you can use it outside of combat to open
jammed doors, vents, etc.
Other items like the Knife and Lighter will have similar uses.
There will be many secrets and optional passageways to take!
Crouching has a whole lot of uses in this game besides its original purpose.
It can be used to explore small openings, go under tables and other objects, create less
noise from terrain and objects to avoid enemy detection!
This intended feature is to give it some combat functionality! You can Crouch Dodge at just
the right timing to avoid most of the enemy attacks in the game.
Other attacks like projectiles can be countered by your Knife Swipe ala Resident Evil 4
which I will showcase at a later time :)