Ok so i've never boosted before in cod, but i'd really like to know how it would go.. Are the lobbies solely for xp and score or do these lobbies boost for challenges etc.? I'm trying to get some challenges, hero gear challenges, and dark matter done and would love to get it done an easy way lol I've never touched any secondaries in the game. If someone would give me the basics, i'd appreciate it and I'd be down for a boosting session.
-Thanks