There are scenarios in the core sets, and you also get scenarios to play in the large and huge ship packs. The standard game is 100 point death matches, however. There's also Escalation (tournament play with increasing point values per game).
We've played 2 vs 2 before with good effect, especially when introducing players to the game or (one ship each etc) or playing larger scale matches (150, 200, 300 points).
Edited by FTS Gecko