Plot #1 guide (Page 18 of 43)
Boarding the prisoner shipNow we hopefully got a boarding crew sorted, and landed on the buildership its time to tell the pilot that we are ready to leave. Once we do, we will be jumped to another area (where the prisoner ship is). Now we must head towards it, then select board however just before that Yisha will tell us to immobilise the ship, so it cant from escape when we are boarding it. Damaging the jump-drive and engines will do the trick.
Once that done, the marines will be sent. However to aid them Yisha will show you key systems to attack. So now attack and hack the ship (with a drone) until its finally captured. If stuck, see the video below;
Done you have captured the ship, you will be told to land on one of the ships nearby, to take you back.