"As you saw when you attacked the factory, Vex swarm Riis-Reborn," Variks says bitterly. "They are pests. But your commander is right. Such pests will make House Salvation weak."
"Variks will help you and your Vanguard once more. House Salvation must be destroyed, yes?"
Variks offers to guide you through several low-level sabotage operations, so that you might take advantage of House Salvation's disorganized state.
Complete two Sabotage quests acquired from Variks.