someone made this sugestion the other day, forgot whom, but thanks. smoke + scavenger + mms + hardcore dom. everything else is up to you. i pack a C4 for a lethal
you can almost smoke up the whole map if you are good haha. i try to keep it to just smokin up the enemy spawn so my team mates dont go blind either. if you are getting tired of this game and have not done this combo yet, i suggest you give it a shot. it is VERY fun to play.