Amusingly enough, the stats between dual bursters and a Skyguard are actually extremely close based on the weapon info given ingame. The rate of fire, velocity, damage, and even cone of fire are really close between the two. As I recall the Skyguard actually has a small lead in the first three (would have to double check rate of fire). Bursters recoil less and can cert for extended mags (Skyguard being practically the only multi-round AA option that can't cert magazine size). The other main difference is that a MAX is a lot harder to spot compared to a Lightning.... which is what really makes them so deadly - they can go practically anywhere just like other infantry and are extremely hard to spot from several hundred meters out.