Lot's of PDC of course. Missles yes, but not exclusivley. I have found a WP with PDC and DUC to be quite nasty when the enemy forgets to change ship strategy to maximum weapons range before attacking my planets.
And if they do remember, usually my missles don't hit them often anyway.
Geoschmo
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I used to be somebody but now I am somebody else
Who I'll be tomorrow is anybody's guess