This guide is written for players that are actually decent at the game and not complete shit, so if you're some random 1500 player who wintraded to 2400+ for example and otherwise would not be able to beat another 1500 team, this guide is not for you.
Intro: So as you all should know, while in que for rbgs, if the timer reaches 8 minutes, you end up getting paired up with very low mmr teams. There is a way to specifically que into these teams at a very high chance, so you can get some quick wins to get your cap.
Step 1:
Get your rbg group set up(i suggest making a normal comp incase the low chance you end up queing into an actual team)
Step 2:
Que for RBG's, instantly alt f4
Step 3:
Do NOT log in until the timer has reached 8 minutes, I suggest just simply not even logging into the character screen, i don't know if that affects anything or not, but just stay logged out.
Step 4:
When the timer hits 8 minutes in que, someone in your group should do a ready check to make sure everyone is there
Step 5:
Log in, take que, beat the (very super high chance it will be) shit ~1500 team
Step 6:
Collect pts
How is this useful? It allows you to get your weekly rbg wins for conquest cap, if you do it as a guild, you get your weekly 1500g from guild activities, and it also counts towards your 300 rbg wins achieve.
Also:
There is a small slight chance you will que into wintraders as well, so you may actually get points out of this, and there is also a small chance you can que into a legit team (very unlikely, hasn't happened for a long time) so make sure you don't que some random half assed comp that wont stand a chance to a normal team.
edit: I highly suggest not using this to win a shit ton of games, you will only get 0-1 pts at most per team you beat, just use this if you want to cap an alt for 1 or 2 games of points, other than that if you just spam que like this for like 20+ games a day im sure blizzard won't like you.
Enjoy.