co-op gameplay, Resident Evil 5, inviting friend, split-screen, online multiplayer, action pose, horror atmosphere, dark environment, flashlight, zombies, survival, weapons, tactical gear, detailed textures, character interaction, intense facial expressions, teamwork, strategy, console gaming, PC gaming, dynamic lighting, over-the-shoulder camera angle, immersive experience, cooperative mission, adrenaline-pumping, high-resolution graphics, voice communication, in-game invite system, user interface, gaming session, thrilling, suspenseful background music, 3D audio effects.