petm: the most annoying thing about this game it that in most mission you lose if you destroy the enemy. in this mission it is even more annoying since you have to prevent him from completing the omega portal right next to his frame. i had to put some of my energy cores under his frame to support him.

how come enemy frames without cores sometimes automatically die and sometimes dont?

what i came here to say is a warning. dont accidentally connect the omega portal to your power grid. your buildmaster will finish it and it wont end the mission, but building the alpha portal wont end it either. it's broken.