Some of my findings on the 'etcmodel' folder!
Et0100 = Box (The one you can knife down to loot!)
Et0200 = Box (Same shit but smaller)
Et0300 = Door (The ones on the village)
Et0400 = Desk (The one you move to block doors)
Et0500 = Shelf (The one you move to block doors and windows)
Et0600 = Ladder
Et0700 = Wood (The one blocking windows)
Et0700 = Wood (Same shit but broken)
Et0800 = Ladder
Et0900 = Door (I believe it's the one where you fight El Gigante for the second time)
Et1000 = Lantern
Et1100 = Barrel
Et1200 = No clue , it looks like a cilinder.
Et1300 = Door (Wooden Door found indoors)
Et1400 = Torches
Et1500 = LargeBox
Et1600 = MetalDoorD (Look for a texture named metaldoorD to figure out which is it!)
Et1700 = MetalDoorE
Et1800 = DoorC
Et1900 = Torches Again
Et2000 = DoorD
Et2100 = MetalDoor4
Et2200 = Door5
Et2300 = MetalDoor5 (Look like the cage one where you're trapped with garrador)
Et2400 = MetalDoor6
Et2500 = Glass
Et2600 = OpenDoor?
Et2700 = Huge Door (Probably located on the castle , it has that feel to it , texture is called door_7)
Et2900 = Glass01 (Same shit but this time it's a retangle)
Et2901 = Glass01 Broken
Et3000 = Knight Statue