I checked to see how far into the game I'm at, and it looks like I am 7 chapters away from beating it. After my last final today, I'll probably play it and beat it.
The hardest part of the game for me so far has been the part with the murle or whatever it was called, I had to check online to see how to complete it.
A huge tip for anyone playing:
Whenever the machine pistol appears after you killed an agent, pick it up. The normal pistol isn't fast enough, because a lot of times in the game, multiple enemies will be shooting you from above and you have little cover. That is unless you can pull off headshots back to back with a normal pistol.