As with all online achievements your skill in the game will make this achievement easy or hard.
Being competent at the game will get you through Bronze. Knowing your character and understanding the match ups will get you through Silver.
Getting through Silver will earn you Gold rank and this achievement. Fair warning, the game changes at Gold rank and things become real. At Gold rank matches are now two out of three, so getting through Gold and to Killer tier is no joke.
You can sorta boost this achievement. What I recommend is playing at a time when most people are not on, so you will want to do lat at night, say 2 or 3 am. In theory you are already in Silver tier working towards Gold. Your boosting partner needs to be Bronze or Silver. They can be Gold as well but it's a little tougher.
What you do is search at the same time. If there isn't anyone else on it will match you both together. You get the win and move up. It works great until you get to the Rank Up match. That match will be Silver tier or greater with an emphasis on finding you a Gold tier to fight. Most likely you will have to win this match for reals.
I actually boosted a friend all the way to Killer tier (once I got to Killer tier of course) so I know it's possible, it just won't happen all at the same time so be patient.