[Pepper Jack]

your best bet is playing A&D like karma said, you should pick up about 1,200 points for a victory in a 20 min game, a friend of mine have a brilliant method to get 600 pts every 3 mins on t-hunt but i'm not at liberty to share it

and as for your other question, no, u cant separate jung and michael, they just get in the way anyway, just do what i do, stick them behind cover somewhere and go thru the game by yourself, otherwise you end up spending half your time trying to revive them in the middle of a firefight