You can try checking online marketplaces like Steam, GOG, or Amazon for a legitimate copy of the game.
The gameplay in Battle: Los Angeles is standard for a third-person shooter. Players control a U.S. Marine who is part of an elite squad tasked with fighting against the alien invasion. The game features a cover system, a variety of firearms, and a healthy dose of action. The controls are responsive, and the combat is satisfying, but the gameplay can feel a bit repetitive at times.
The graphics in Battle: Los Angeles are good, but not great. The game's character models and environments are well-detailed, but the textures and lighting can look a bit dated. The sound design, on the other hand, is excellent. The game's soundtrack is pulse-pounding, and the sound effects are convincing.