If you want to join the army, you need to know something. In the army, they would want you to obey without asking why. You also need to know that you need to coexist with the other soldiers since you will be defending with them and vice versa. There is such a term known as the buddy system, which requires you to befriend the soldier you are next to.
In this game, you would experience, how the buddy system works. The idea of the game is to get the flags and deliver it to the destination. Of course, you would be using different vehicles in this game.