How do I get the blue dot on Holo in Call of Duty Modern Warfare?

How do I get the blue dot on Holo in Call of Duty Modern Warfare?

Hello ! Are you having difficulties too? I've tried this many times too. I studied video reviews of the game on the forums. But I couldn't. Missile defense helped me. I buy Modern Warfare boost legionfarm and Blue Dot on Holo is mine now! The service includes a Play with PRO session.