Talk:Fall 2013 Event/@comment-111.110.177.65-20131110105005/@comment-16916378-20131110122837

Support expedition is much more useful here than in E-4, since it helps clear up trash mobs that could block your attacks to the boss. It's necessary if you need to kill the boss, but optional if you're just looking to bring down the gauge.

Don't be afraid to use them if you can spare the ammo. But remember that they use a fixed amount (6fuel bars /8 ammo iirc) every time so it would be a waste if you didn't reach the boss node.