"Havens Fall" in the campaign.. I can't beat it right now. I went to the forums and see that other people who had a hard time with it posted that they got to use battlecruisers and siege tanks.
My only options are Goliath, viking, marines, reapers, firebats, medics, hellions. No siege tanks, no battlecruisers. I want to know why if I have beaten the entire campaign why I can't get any unit I need when replaying if other people do get all the units. How do I get all units to play?