The first is next to the lift terminal, inside a room with a broken window. Another is to the right of where you’re standing when you shoot the first electrical box. From there, you can go behind the Pack-a-Punch to find the third. The fourth is in the room where you defended th...
while also allowing you to build an object on top of them, floodgates have a control mechanism. Depending on the floodgate’s size, you can control the height (i.e., when water is allowed to flow through