Avoid the Atrox unless you want something that turns like a beached whale covered in molasses on a winter's day, and has horrible damage potential to boot.
You forgot about the broken flipper...
I use the Armatige on all my characters and love it. Tac, Sci, Eng... They all do well with it. As with the Atrox, you can load Shield Repair drones on it, a good shield and Field Gens and last forever.
I love nice long walks in the country.
Especially if they're taken by people who annoy me!