I'm going off wild guesses here, but if the springs in those blues aren't changed, likely this is an interesting variable weight set up for gaming.
modifiers are linear because those keys aren't struck, but held down - tactile, clicky switches have a problem of somewhat sticking on slow releases.
wasd - obviously for gaming purposes - likely fps.
is that a white switch on the spacebar or a clear?
The only strange thing about this set up is the fact that the pinky keys for the right hand aren't accounted for in terms of variable weighting. It looks like the OP is only concerned with getting a lighter key press on the keys traditionally used for FPS mainly (WASD, QER, ctrl,shift mods 12345), which seems about right except I'd probably swap out zxc for blues too.
Also, it'd probably be a little weird to type on this keyboard, especially because of the linear wasd cluster. Very interesting set up though.
@remedyhalopc: let me know if I guess correctly?