Marvel Heroes 2015 Completing the Let's Go, Bub Achievement

Marvel Heroes 2015. Completing the Let's Go, Bub Achievement. This is completed by beating Sabretooth with Wolverine 10 times with the Red Muramasa Blade equipped. This is best accomplished in Mutate Marsh. After being defeated, Sabretooth spawns 1 minute (or so) after. As you don't need to be in Superheroic mode, you can cycle through Normal and Heroic as well.