hi oneyejoe, welcome to the forum.
the pluck in the beginning sounds like just a lowpassed plucky saw playing that one chord. i hear some automation on the cutoff and decay for sure, as well as the pitch for that detuning. there's some reverb coming in the last few bars, which is why it all kinda blurs together along with the opening envelope.
the main bass sounds like a sawwave bass. the squelchy hits are a resonant filter, probably a lowpass too, being activated. the base sound itself should be pretty simple, the key will be in how u process it. tasteful distortion/ compression. a lot of dark techno is simple sounds like that, processed in a lot of real subtle ways. looking up deadmau5's streams where he made 'imaginary friends' might help give you ideas!
that vocal hit sounds like a reallyyy short syllable from a pack like vengeance. it sounds like there's some kind of stereo delay going on that makes it wider to contrast that mono bass. to play up that sorta watery artificial sound, you might also mess with some of FL's sample time stretching algorithms (speeding up/ slowing down samples to fit that 16th note), vocoding, or pitcher. any of those can help introduce that.