What's the difference between getting one shot in the air and one shot on the ground? I don't see how being in the air can provide any particularly useful benefit. Sure you can see more of the battlefield, but that also means everyone else can see you, and shoot you. Flying would probably make you invulnerable to Infested but so would you know, standing on a crate.
Seriously what's the obsession with this thing? Is it just because of thematic/aesthetic reasons or is there some gameplay benefit I'm not seeing here?