Request Read Please

i was thinking in a way to make the gems puzzle in metro more important, in the original this puzzle open a entire area and in the Remake he gives "bullshit"
a way to improve the puzzle is to put certain keys items in
like put the bolt cutter in the puzzle and the green crystal (to unlock the bolt cutter) in the safe
the fire hose in the alley closed by a chain close to moon s donuts
and change the lockpick box on the dead body for a box with blue crystal and put the lockpick box in the puzzle
and for red crystal you can give a hip pouch