I think it is supposed to be confusing for now but from what Ive gathered:
1. The consortum probably is a criminal group that has some type of ties to Shine media which is the company Loren is in charge of and also probably the reason he had to actually kill people, i also think that Lorens relatives are involved in some way
2. The info that Rian gathered is probably the money flow that connects the consortum to Lorens enterprise, and also the reason Loren is cooperating with Uno, maybe because he wants to legitimize Shine media and separate it completely from any criminal ties
3. The mistress I think you are referring to the woman Uno was also targeting in a previous mission, who i think is just a wealthy benefactor of the consortum and maybe washes the money for them or smt of the sorts
Hope it helped(๑•ㅂ•)و✧ also if im wrong in any info pls someone lmk

Can an absolute angel pretty please explain to me in simple terms the whole situation with the consortium, gang, his company, the info, that mistress how its all connected, this is all just too much of a brain cofuffle for me