Opponents' alertness levels | Tips Hitman: Absolution Guide

Except of exceptional cases, where enemies hunt Hitman from the very beginning, they are usually neutral attitude to you. But this neutrality may be very easy compromised. The most common reason for that is catching Hitman on entering the area, where he has no access to. Other reasons to alert guards is to making them suspicious while being dressed same as they and waking with your weapons pulled out. You have to remember all this, trying to operate out of hiding as long as possible, thus leaving opponents unaware of your actions.

Basically there are three levels of alertness of enemies. The yellow one is not necessarily associated with any troubles. It means that something caught the attention of your opponents, a car alarm for example or Hitman's disguise. The orange level is a bigger problem, since enemies with this alertness level obviously know that something is wrong. The red one is the worst of all possible variants, because Hitman is then attacked by enemies. It is worth mentioning that triggering alarms might be connected with one more difficulty - calling the support. As a result getting out of troubles might be even more difficult. Depending on how much enemies are alerted, you can count on this, that situation will calm down over time or you might be forced to eliminate them.