Learn what the shapes of Strelas, Tunguskas and Shilkas looks like compared to tanks/APCs/trucks/artillery/etc trough your AGM-65 crosshairs. Even more; learn to be extremely paranoid, and that your biggest nemesis will probably be igla-armed soldiers. Very hard to spot, even with the AGM-65D seekers, and you need visual of the launch to even know it's coming. And if you do, you normally only have 2-3 seconds to flare and evade. Do like case said, learn to ID your targets, and ALWAYS scan around for IR launches. Oh, and learn to study the briefing map before clicking fly, checking headings and distances between target zones and relative to waypoints.