My opinion is short and to the point.
I think the tac missile specs should be copied to UEF blueprints and not to Seraphim. The Seraphim tac is the one that is so overpowered, so by copying it to "even it up vs UEF" now we just have two overpowered tacs instead of one. Both UEF and Sera need to share the weaker spec'd tac missiles.