Let's Go VS Force! Achievement

I've gone for this achievement a couple of times but nearly nobody cares about doing a match on a large map. Another problem I ran into was that the VS units are random on the map; thus you may have to play the big map a couple times or so just to get two VSs you need. Also, hope you're lucky that another player, who is on your team, knows of this achievement and helps out.

If you want some help with this achievement, let me know. My gamer tag is Xynthoan also.