Beyond Enemy Lines is a tactical shooter with a hardcore difficulty level that requires every effort from the player to achieve victory. In the gameplay you have to create your own path to winning, watch your opponents, secretly find yourself in enemy territory, kill your opponents or pass by them. Each mission is completed in an infinite number of ways, depending on what actions the user takes.

The main character is a special agent who uses advanced weapons and modern equipment. Being a secret specialist, he operates secretly, relying only on personal efforts. He has dozens of successfully completed truly difficult missions. Basically, he moves outside the enemy's position. He infiltrates bases, disguises himself, pretends to be one of his own, kills high-ranking opponents or obtains valuable information.

Artificial intelligence does everything to prevent tasks from being completed. Each enemy acts without predetermined behavior, based on what is happening in the area. Opponents will react to the threat together, call for help and interact with the environment in order to stay alive and make the most of the situation. There are thousands of routes to complete missions. The user will have to use all the equipment to find the appropriate way to achieve the goal.