Novastrike
16 Achievements
PS3
Savior of Tolak
Finish the sixth stage on any difficulty
14.5%
How to unlock the Savior of Tolak achievement in Novastrike - Definitive Guide
There's a lot of discussion going on here and the major strategy that seems to work, is to destroy the enemies around the portal when the stage starts so it's easier for the transports to make it through when they get close.