The Novalith Cannon, the TEC's superweapon and the strongest weapon in their arsenal. It is a railgun the size of a capital ship that fires huge nuclear warheads at enemy planets through phase space. The explosion devastates the target planet and all ships in orbit, and it can completely sterilize a planet in two shots.
The Vasari, on the other hand, have the Kostura Cannon, which functions similarly to the Novalith in the sense that it shoots gigantic missiles at enemy planets. However, instead of nukes, the Kostura shoots powerful EMP warheads that temporarily disable all enemy ships and structures.
Winning a map. Throughout the entire time you play on this map you're involved in what is undoubtedly a long, costly war against the other faction(s), and you finally bring it to an end.
The Trader Emergency Coalition, using nothing more than converted civilian craft and antiques can kick just as much ass as the Imperialst space aliens and the nation entirely composed on psychics. Think about it.
Gets better with Fridge Logic: The Vasari and Advent rebellion split have the "loyalist" factions wanting to continue the war, and the "rebels" wanting peace. The Traders? Torn between Holding the line and ensuring Peace Through Superior Firepower, or a more... permanentoption. In other words, the other races are asking, "Is victory possible?". The TEC is asking, "When do we call it victory?"
The Vasari have been fleeing an unstoppable enemy for god knows how long. The Vasari loyalists want to keep running. Vasari rebels want to throw the TEC and the Advent at it.