ETD is a tactical action game.
You command a special intervention squad that intervenes in various situations and environments.

Psychology
Civilians and armed suspects have certain morale and react to the stimuli around them. With the help of voice pressure, it is possible to force the opponent to cooperate. However, this may not be enough for long distances. Some give up easily; some do not. In case of failure, it is possible to use other options such as Pepper spray, blinding grenade or shooting with non-lethal ammunition. Usually, however, you would need more than one hit.

Fight tactics and breaking the door
Choose from an intense dynamic action such as blasting the door or kicking them in. In this case, however, you can face opponents from the outside but also the inside. In many situations, therefore, a quiet action is more appropriate, like a slow opening of the door using a handle, the use of silent variants of weapons, etc.
Before entering the room, it is recommended to use a camera to check the number and location of suspects. The door can be opened in many ways, such as slowly opening the door, kicking it out or using explosives, etc. Some doors may be locked. Then it is necessary to use a unique multifunction tool to open it.
It is a good idea to be safe using a Flashbang grenade before entering. It is advisable to continually guard access to the room and cover the space and corners as well. It is also advisable not to shatter the team too much and rely on yourself more.
It is ideal for moving forward considering the protection of the lives of civilians, armed suspects and, of course, members of your team.

Fog of war
You only see what your team members see. You have to proceed carefully from door to door, covering corners and unprotected places to prevent a surprise attack of the enemy. Because the design of the levels is not predictable or not know in advance, surveying the area goes step by step.

Set up the rules
It is essential to set up the rules as soon as possible and to secure all suspects and civilians. An unsecured opponent is still a threat, and if one does not pay attention, he may try to escape or attack suddenly. Chaos on the battlefield increases the risk of injury to team members or civilians. Civilians can panic and scatter around.

Shooting system
The shooting system is based on the trajectory of the projectiles, considering the experience of the unit and the accuracy of the weapon. The higher the distance, the greater the chance that the enemy or your unit will also hit people around. These risks have to be considered based on the unit's experience. Some materials can be shot through.

Ai
Opponents move around the area based on their judgment. At the beginning of each level, their position is randomly generated, so it is necessary to proceed carefully and tactically each time. They respond to loud sounds and follow what they see. If a threat occurs, they also let their colleagues know the information for being cautious and within a specific range. If attacked, they then try to hide behind the nearest obstacles.

ETD: Forces in action

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