It is the second game in the series, and one of the best ones.
As in my previous guide, i'll go through all enemies in extras menu order and only after that i'll go to max mode.

Santy - one of the easiest and hardest enemies at the same time! He will go to your left door, after reaching it, he will make a wet floor sign falling down sound(it is the closest i could get). To deal with him all you have to do is just flash him. He is one of the hardest, because he requires you to go to the opposite side of the office, meaning you won't be able to open cams fast.

Curi - the easiest one. He can't kill you directly, however he can break your ventilation system to kill you. He goes to the vent, and climb to the top of the map. You can use a seal to prevent him from breaking your ventilation. I would recommend always use it when you can, since it won't open until Curi hits it. You can fix the ventilation system or die in around 10 seconds.

Titi - easier than Santy. He is easier than Santy, because he doesn't require you to go to the opposite side of the office. He will go to the vent on your right and make a sound of hit in the vents. All you have to do is flash him just like Santy.

Nick - one of the main threats of the game. He can't kill in any way. He will go to your left door. To prevent him from coming you have to use audio decoy in your cameras, however it is the most random thing ever, since you can spam it and it won't break or just click ones and it'll instantly die. You can fix it however, but it gives Nick enough time to go to you, and also don't forget that it is the most random thing ever. If Nick comes to your door, you are screwed if there are Titi and Santy, as you won't be able to use your flashlight. After reaching your door, he will never leave.

Toby - another main threat of the game. He will stand on the stage most of the time, however you'll be able to see how his mood is ruining(because of you) and eventually he'll make a scream and run to your room, instantly killing you if you don't turn of the lights by the end of his last step. To defend against him, as i said, you have to turn off the lights, however you can't do it forever. Lights in the building can be turned of a short duration of time, so you have to time it right, that lights don't turn back on when Toby is looking at you and that you don't die to him. It's pretty easy to do, however he can cause problems because of the camera system.

Ellias - Final main threat of the night. After around 10 seconds of the night start, Ellias will go to your doorway, either saying any of his voicelines or silently. To deal with him you have to flash him, and after him leaving, the real game begins. He will go the random camera, except for vent ones, and will require you to look at him, as his patience bar will go down really fast. After finding him, remember which camera he is on. If he ever leaves it or says his voiceline, he is at your door and you have to flash him again and find him in the cameras. You are INSANELY lucky if he appears on first 2 cameras of Nick, as you'll be able to deal with 2 threats at once. The main problem begins when Toby is attacking. His patience doesn't go down, but since Toby requires you not to use cameras, Ellias can go silently to your door right after Toby, and drain his patience, until you find out that Ellias is at your door. However flashing him is way more effective than watching him on cams, as his patience refills a lot faster.

I won't be making guide for post night, since it's really easy, but very long.

Now to the only max mode, 6/10. It is HELL. I won't be describing everything in details, but i'll go through the main aspects if it. First is, camera and sound breaking. If it happens 3 times in sum, you will die, since repairing systems take way too long. Second is, Curi. You HAVE TO constantly check on him and close the vent seal. On his max AI he is more of a threat than Nick, Toby and Ellias all together. Third is, luck. I guess i don't need to say, that if Ellias goes to first 2 cameras of Nick you are really lucky. But game can make insane combos of enemies, like Toby -> Ellias -> Titi -> Santy or Ellias -> Toby -> Titi -> Santy. And the final aspecct of 6/10 is Nick. You DON'T WANT HIM to go past third camera, as it will require A LOT more luck since every sound use is INSANELY RNG based.

Hope this guide will help someone!