Even after 8 episode this show still confuses me.

s6Official said:
All I can tell you is that you should go read Tokyo Ghoul Part 1 which ended in chapter 143!
And you'll understand everything, I know for sure that you will have a great time reading a great manga like Tokyo Ghoul.

NiotaBunny said:
everyone hates the ghouls, so a special task force was established, as fate would have it science took an even darker turn resulting in gene splicing and parking things. basically we got a "sleeper cell" waiting to be awoken. skipping a season, even if it might have sucked, could have been the point behind the confusion. it sorts of help not to skip, that could be why you're confused, just saying.

TG is a sister to Attack on Titan in regards to the death, gore and monsters created by science and/or a freak of science with nature stepping in to twist the fate even further.

as for the weapons in TG, they are, as stated in the first bracket, they are part of the gene splicing, that was discussed in the first few episodes of season 3 in contrast to like a recap and catching us up from season 2, whereas they are sneaking season 1 in now with recaps and revisits with old friends. perhaps season 2 of TG:RE will go even further into detail regarding seasonal ghouls. like some series, there can be too many people in the scene and they can't focus enough so they sort of go into directions they shouldn't or they'll bring about a filler that either throws someone off, or is pointless completely. there's also the notion to go read the spoilers at least for season 2 so you're not entirely lost with the series.

FMmatron said:
If you're really interested in a better understanding of the events,character motives etc. then you should go and read the manga. Season one was just an entertaining action/thriller,the source has more to offer,but they skipped tons of important dialogues and monologues which were necessary to make things clearer.