Actions Sudden Strike 3 occur during the Second World War. The participants are troops from different countries, including the USSR, Germany, the United States of America, Japan and so on. There are several companies available to complete, and there are just over 10 missions. The user will have to take control of the units and fulfill their strictly defined combat goals. As you progress, you can observe the variety of armies and their development.

Sudden Strike 3 does not have a production system. Based on this, new tasks imply a certain number of units in the army, as well as the opportunity to receive reinforcements. While completing the task according to the combat instructions, the player will have to lead units to victory. Thanks to the tactical mode, which can be entered from the strategic mode, the player has the opportunity to slow down what is happening around him in order to intelligently weigh all the advantages and disadvantages of the current situation, trying to change the course of the confrontation or battle.

The user himself has the right to choose the country for which he will fight. Also, the allied armies will also be under the influence of the main character. The missions here are: security or delivery of military supplies, carrying out sabotage operations and much more. By setting up ambushes and landing paratroopers at enemy bases, conducting reconnaissance and transporting tanks, there will be a greater chance of a sure victory.