Metal Gear Online

You can try playing survival matches

ALWAYS REMEMBER TO LOGIN ON WEDNESDAYS You don't actualy have to play the game, just take the few minutes to login to get the wednesday bonus; 100 rwds instead of 50. Other than that, try survival like kchen said.

Try automatching and look out for surveys.

Play survival you get 50 rp if you dont win but if you win you get 100
then consecutively the amount raises by 100 so
1 win-100 rp
2-200
3-300 and so on but they stack so really
3wins-600rp

Log in everyday especially Wednesdays you get 100 on that day, buy the expansions, and play survival also in tournament even though your team doesn't win you get 200 for trying.

Building off of what everyone said, now in matchmaking, there will sometimes be "Prize Matches", where the top player in the game will be given a big rwd bonus. it can be 400, 200 or however many. i think ppl refer to only playing reward matches as farming.

Lolz just farm RP in a AutoDeathmatch XP

Try automatching capture or solo capture it gives 1 point per secs once u put or captured the target plus the games' ones....Your best bet also is survival and tournament....Tournament as u know gives you 200 points 4 entering....

1 Log in every day you will gain 50 RWP unless its Wednesday you will gain 100 RWP

2 Survival if you lose you gain 50 RWP but if u win 1 game u get 100 RWP and if you wi game 2 u get 200 RWP but since i stacks it becoms 300 and wil go up 2 1,500 RWP (5 100 200 300 400 500)

3 Tournament Even tho its held 2 times aday just now and might increase later in the game if you lose you get 200 if you get 2 the Top 8 its 1,000 top 4 1,500 Runnr up 2,500 (i think) + u get a Fleece hat in a colour (Changes now and then) and if your a Champion you get 5,000 RWP along with a Berret in the Colour of that Tournament

4 Konami has given awy 10,000 RWP 2 times i know the fist 1 was for 1,000,000 Members of MGO but not sure of the second

Ive heard about this youtube video that gives you free RWD points here ill link you
www.youtube.com/watch?v=xfeXoYzFpVA

Sign in everyday - 400 a week.
That means it takes 50 weeks to get 20,000. If all you do is sign in.
Play survival - 50=Lose/ 100=Win --- Multiple Wins=200,300,400,etc...

By not playing at all....It adds up real fast.