No. Well, not really. Let's take a look:
It's S7 AP4 Skyfire. This allows you to fire it at your normal BS at Flyers. Now we'll look at how they function against Flying MCs and Flyers vs. an Autocannon (S7 AP4 Heavy 2).
Math Rules
MEQs are the ones to get these so BS is 4 always.
FMC's have toughness 6
Pretty much every flyer is 12/12/10 or 12/12/12 (Necrons are 11/11/11 but whatever)so we'll use AV12 (I'm doubting your heavy unit manages to get behind a flyer often)
They won't be evading or diving (ie no Jink)