I'll address your post first then make some other comments.

There are no counter measures at the moment (though I'd love to add some at some point!).

The missiles do not simply lock on to any target. There must be a target within your visual window for them to lock to. Also, they do not live forever.

There have been some other suggestions from players addressed to me either in game or over XFire stating similar thoughts. The majority are of the opinion that on the map Strike at Parmel, they love the dogfighting aspect but do not like the so called constant missile spam.

In the map Imperial convoy raid, TIE Defenders and A-Wings feature prominently and also have the ability to reload. The differance between the two maps however is that Imperial Convoy Raid features a set objective for rebels, Parmel does not. The majority would prefer then to see a reduction in missile spam only on Parmel.

The way the game handles objects such as ships, means that in order to address all the points you raise, there is a good chance I would have to completely re-create a different type of A-Wing and TIE-Defencer plus missiles. That would then require a lot of testing as we'd have to check them against every ship in order to look at how they are balanced.

I do have plans to reduce the missile spam on parmel though, and work is already underway. I do not want to give away just yet what the changes will be, but I hope to have it in the hotfix later this week.

Thank you for your input and suggestions.

Bite my shiny metal Tie Fighter!

http://www.youtube.com/watch?v=o2DN1G1w5Fo

First time I loaded convoy raid i assumed that the '6' counter corresponded to torpedoes. Flew to within range of the frighters and hammered fire...

and was confused as 6 missles flew off in different directions at ships I wasn't aiming at and killed 3.

Currently, in a dogfight, the ship with the missiles wins, he just needs to keep turning until his missiles reload.  if he flies stright they'll do a 180 and get the guy behind him.
aiminh has very little to do with missiles, which can be a pain when you're trying to hit a particular guy- they'll often veer off and hit a Y-wing instead of the A-wing you were shooting at for instance.

''Its over. Angel won.''   RSF Gurd

Of course because they don't take any damage from them. . . . . . . . right.

When I'm flying a TIE-I, the majority of my deaths are from missiles.  Ditto for flying Y-Wing on Convoy Raid.   There is no counter for missile whores.  Missiles can come from any direction (I've been killed by an A-Wing which had no idea I was there, just as I was pulling up to get my killing shots on it with missiles), and don't even take the slightest bit of skill to get easy kills with.

I love playing on Taloraan as rebels, yet often detest it as Imperials (I love the TIE-I, but when there are a-wings it's not worth it) because as rebels there is no risk of random death by missiles.  Convoy Raid - ARGHHH, both sides have to deal with the constant missile spam, it's awful.  For parmel, even though I love the TIE-I, I am going to take TIE-D every time.  I'm not going to put myself at a disadvantage when the enemy is going to be spamming missiles.  If they're going to do it, I'm definately doing it too.