Ice hotel is a mission where stealth is key. You need to work fast as rime is more of the essence here. Shoot any security camera that you see apart from 0:52 in the visual guide below. The guards have pretty bad eyesight so If you think you might hsve been caught, you probably haven't.

Difficulty Settings

[b]Player Health - x0.5
Classic Health System - On
Enemy Health - x2.0
Enemy Accuracy - Very High
Radar Mode - Off
Suspicision Indicators - Off
Player Ammo - Limited
Marksman - On
Time Limit - On
Paintball - Off
Ragdoll - Off
Difficulty Rating - 2.33

Visual guide made by MajinFroAwesomeSauce;