Calculating assassin sneaks into premium buildings, First Person View

Taking down syndicate in HITMAN Freelancer with ultra hardcore settings + First Person View mod.
Rules and settings:
- No instinct (Only allowed for identifying target when other means are impossible)
- No unrealistic knockouts of NPCs, such takedowns should be treated kills. Tranquilizer, chloroform and sedative poisons are considered realistic.
- Only essential HUD
- No MINIMAP
- No markup of NPCs, disabled to the max in settings. With exceptions where game doesn’t disable (Suspects, Lookouts in Freelancer Showdowns)
- No camera grid
- FIRST PERSON VIEW ALMOST ALL TIME, except when animations play in third person (modded)
- No Enforcer NPC MARKUP, must do guesswork until they see player and suspicion sound plays
- No speedrun-like prelearning routes