Matrix did not close down. I try to go there almost every other weekend if I can. Maybe they changed the location from when you knew about them? This is where they are now. "OUR FIELD IS LOCATED IN THE INTERSECTION OF 208 ST SW 134 AVE"
Grabbed it from their website -->http://matrixtactical.com/Matrix_Field.html
I'm going to try to go this Saturday or Sunday. Which ever I get more replies to. It's very hard to organize something when I don't have a good head count.
There's already a discussion on this thread-->HERE