Terran setup

Hi all im running into alot of problems even at easy.
What should my setup be like, what research and what ships are good and why?
I have the same problem on the robot campaign, there is a mission where I have to make a flagship into a floating hulk, wtf how do I do that`?

hang back and kill the rest of the fleet first as much as you can
then strip the ship of voids, generator crit is best, hold fire and then board it, a lot
until its empty
make sure you brought some of the starpulse ships to prevent boarding torps from ruining you

if you are on beta make sure you have a few jackals to refill your own ships regularly