I just noticed that the Braineaters' MG-48 doesn't seem to do any damage against aircraft.
That seems a little odd, since the Recon Grenadiers also have the MG-48, and they do 2/1 versus both Armor 1 & Armor 2 aircraft.
I've sent an email to FFG asking for clarification.
This seems like this has to be an error (unless the necks of those poor zombies have decayed so badly they can't look skywards
).