Sorry, I just had to share my excitement for getting Glacial Ravine in matchmaking for the first time in a long, long time. I mostly play 3v3 so it’s nice to get some more variety in the maps I’ve been playing. Maybe I should go buy a lotto ticket! 
Hope you had a good game. I keep hoping it will come up for me but to no avail. The one time it did show up, the other team quit right away. D=
Yes, we did. Luckily I was matched with two good teammates and we worked together well for the win.
In my experience, Glacial Ravine rarely shows up in random 3’s, but shows up in party teams somewhat often. There’s always a high chance that someone in the random picks won’t have the map, but the people who play Halo Wars together often in party teams seem more likely to buy the map pack.