Land Void or Solar final blows in a Seasonal activity. Rapidly defeating combatants and landing final blows with weapons using Heavy ammo grants additional progress. Opening a locked chest grants massively increased progress.
Land Void or Arc final blows in an Episodic activity. Rapidly defeating combatants and landing final blows with weapons using Heavy ammo grants additional progress. Completing an activity on a higher difficulty grants massively increased progress.
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"A trusted gun will sing you a familiar song." —Lord Saladin