The basslines in faceless are beyond me, they still hav me stumped i cant figure it out!
As for most of there tunes (be true, japanese electronics etc) they use a simple bassline, its the terrorist reece bassline which is pretty easy to make.
If u got massive its simple, 3 sine wavs 2 of them detuned slightly in the opposite way (i.e one at 30 the other at -30) turn the formant setting on both of them an make sure the intensity is quite low on both, then the last sine wave leave as it is. Send the untouched sine wave to a low pass filter and the other 2 to a seperate low pass filter an hey presto terrorist bassline.
Theres easier ways to do it, ^^ this is following subfocus's tutorial on cm studio.
Personally i got taught it was a couple saw waves low passed slightly detuned that gives almost an identical noise. just gota play about wiv the detuning for it to wobble right really.