Flyers Thread - Galaxy in Fire RELOADED mod for Dawn of War

What shoud we do with flyers? The one solution is to nerf the powerful ones, so all flyers will be doing only one role (anti-infantry, anti-tank or anti-flyer). The other is to buff weak ones, so all flyers will be multifunctional. The third solution would be to make several flyers for all the races that will fullfil different roles. But this requires a lot of new models, that we can't afford, because there is already too many models in to do list.
SM tempest is very useful due to his krak missile launcher. It can counter ground and air targets very easily. Possible nerf: ground only missiles (the problem is that all other missile launchers can attack flyers and the one on tempest will be inconsistent with other MLs)?
Chaos Helldrake is the same - his hades autocannon can be useful against both ground targets and air ones. And he also has the anti-air close combat attacks. Possible nerf: the same as above.
Ork Fighta bomma is good - it is effective against ground infantry and has no tools against other flyers or vehicles.
Eldar Nightwing - it is a very nice fighter aircraft, but thats it, it has no other use. Maybe I shoud use other eldar flyer? Which one?
IG valkirie is very useful transport. Possible buff: t3 AA lascannon?
Necron night scythe - same as tempest and helldrake, useful against almost any target. Nerf?
Tau barracuda currently can only shoot its missile pods and ion cannon to other flyers, because it was OP otherwise. Buff?
DE raven is the same as nightwing.
Inq Lightning has decent anti-ground autocannon and very nice anti-air with lascannons and an autocannon.
So, I want to know your opinion about this.