I'd also suggest having the "winning side" be the killers and the "losing side" be sitting ducks. That way everyone gets the killstreak, accuracy, survival, and whatever else in one match on the winning side. As long as no one is taking objectives other than the person who's turn it is to get the Top Scorer, then no one accidentally wins out of turn. If the person in charge of top scorer quickly takes all objectives, then the game ends quicker (as far as I know). Smallest map is best for keeping walking to a minimum, speeding things up.
I am very interested in joining the boosting match tonight for Frontlines ranked matches. I don't mind swimming around at the bottom of the barrel for achievements, and beeing cannon fodder for people boosting other achievements either. Will be on, so please send me an invite. Boosted the Hats and kill streak achievements earlier with floridafan.