Buck holds events where there’s nothing to defend—the goal is just to get the highest-scoring rampage. To get a high score, you’ll have to cycle through Buck’s requests as quickly as possible for objective bonuses while stacking up kills, killstreaks, multikills, and Style Combos. That more or less sums up all of Buck’s Challenges. The differences are in the location, the types of OD that show up, and Buck’s requests.
Episode 1 – Buck National vs. the Apocalypse
Episode 2 – Buck Strikes Back
Episode 3 – Buck’s Revenge
Episode 4 – Buck Stops Here