For @player3333902 it would be an average difficulty assuming they are attacking with the lightsaber. You would have to pass the barrier though to do that, so you are in the open currently. With the advantage you could add 1 to your defence till the end of the next turn, you could dislodge some rubble using urban combat rules to stagger a squad for a turn. For the triumph I would agree with @Shlambate that it would be worth an upgrade of a skill/combat check rather than a simple boost dice, that choice is yours though. Feel free to throw up a post narrating Akua jumping into the battle when you're ready.
In terms of the mass combat check, because of the confusion this time you can either reroll at the end of this combat encounter with the modifier from the group, or you can keep the current roll and add the modifier after.
Edited by Rabobankrider