: So I just realized you missed a pretty significant secret on this level. In
: the bottom right corner of the pool room, there's a hidden switch. If you
: hit this, it'll open up a switch inside the short staircase at the top of
: the room. This second switch is too far away to toggle, but if you shoot a
: grenade at it, and then sprint back to the weird room with the Pattern
: Buffer, you'll find that one of the square platforms has dropped down.
: Step on it, and it'll raise you back up in a moment. Then, jump over to
: the closest platform.
: You'll be teleported to a secret room on the far right side of the map, which
: contains two Shotguns, 13 Shotgun Shells, 4 AR Magazines, 4 AR Grenade
: clips, and a 2x Shield Canister. In the middle of this small room are some
: lights which spell out "EF", and at the bottom right of this
: room is a teleporter which will dump you back in front of the first
: So the question is, what does "EF" stand for?
Dammit! So those small rooms on the maps are significant, rather than the likes of M2's test rooms. I already realised i missed one with a terminal on Sensori OverLord, but will have to generally pay more attention to the walk through, assuming that is where you found out this one :)