Nice flipflop from thugs -> mercs. Thats a superset, all assassins are mercenaries, not all mercenaries are assassins. They captured him with the goal of him being dead at the end. When cartels kidnap, torture, then kill someone, its still an assassination little man. That happens in groups too

go touch grass man, you've seen too many movies. most assassins are just some poor person paid to drive by on a scooter and spray someone down.

The first couple chapters introduce too many named characters that seem to not be relevant till a fair bit later. Which makes it very hard to get a grasp on what is happening and sacrifices the chance to get more detail on a smaller set of characters. I immediately was less invested in any one of them. Especially because this happened right off the bat. From the synopsis I was expecting the story to be starting near the end of the synopsis with a bit of extra information. The current state however, is that the at last chapter currently available (ch47) the progression is halfway through the 2nd sentence of the synopsis. Which means so far chapters only exist for what you already know will happen if you read that. This makes it a boring read so far, in my eyes, and should have been left as a brief prologue. I do feel this has potential as the ideas seem to be there and the characters and worldbuilding seem to have been thought about, but its currently not there. I saw you had a similar review so I tried to give explanations as to why I think this way.

Math is over 2500 years old, still uses numbers. They are simply the best way to represent unique identifiers. Be creative where it makes sense.