Top scorer has to be the only one. Every other bounty is strictly based on grinding. If you play enough, you'll complete the bounties. At best I'm an average player, so when I'm with friends, some of which are amazing, I am resigned to the fact I'll never complete that bounty. I've completed that bounty every month, except twice, by playing solo, so I'm matched against similar skilled players and my teammates are roughly my level, too. Even in the case of top scorer, it's not hard to complete. Part of me thinks the game throws me a bone once an IB week, to almost guarantee a top score. I can be sucking game after game, then all of a sudden it's like I'm a GD KJ Hovey/RealKrafty hybrid with 3.0-5.0 match, when I'm normally lucky to have a positive K/D.