hi you can obtain this achievement easily because you don't need to do a complete match.
Go in multiplayer = Host a match = choose coop mode ( tell to your partner to join you or send invit to him )
when you are in the game your partner quit the match ,once your partner has left you can quit the match then you obtain the achievement.
Restart this for your partner.
BUT i don't know why it seems like don't work with the other achievement play 10 matches this is strange.
I'll check this later and i'll tell you