For AA, your best bet is keeping the Autocannon on the Heldrake. 4 Str 8 shots are pretty mean to have against other Flyers (though Death From the Skies may have changes this), or the Aegis Defense Line Fortification and getting the Quad Gun. The Autocannons on the Forgefiend can suffice to a point, but their low accuracy against Flyers will reduce the volume of fire to being less effective.
And yes, you can include units from other armies, but they should remain in their own detachments. Unless a game organizer states otherwise, you can include as many detachments as you want in your army (so long as the points are available
). There is also Unbound, which means you can include whatever units you want without regard to detachments, but not everyone is willing to play against it.
Are you a Wolf, a Sheep, or a Hound?
Megavolt wrote:They called me crazy…they called me insane…THEY CALLED ME LOONEY!! and boy, were they right.