How the game plays
The game is incredibly straightforward and simple, in the menu screen select the equipment you want to bring, then select the mission and difficulty level of that mission you want to beat. That's it. Choose two weapons from one of the 150 different weapons that are available, split up into 7 different classes: assault rifle, shotgun, sniper rifle, rocket launcher, missile launcher, grenades, and special weapons. You start the game off with a minimum level of stamina, and only 2 weapons to choose from, while playing through the level enemies drop armor powerups and new weapons that need to be picked up to upgrade your character and add additional weapons to your arsenal.
When inside a level the gameplay takes the form of a standard third-person shooter. The camera is placed directly behind the character's back instead of the more modern over the shoulder view. Each level follows the same formula: kill everything. No escort missions, no protecion missions, just kill the giant ants, 50-story robots and flying saucers. There are other EDF soldiers on the ground fighting alongside you that can be recruited to follow you around and cheer you on while helping you kill. Some levels also contain vehicles (4 different kinds) to add more firepower in taking down the larger enemies.
Gameplay modes are sparse. There's the standard mission levels that can be played in single player or with a friend through splitscreen co-op. There's also a battle mode where you and a friend kill each other using the weapons that have been unlocked. No Live multiplayer or leaderboards are present.