Awesome there happen to be some near by in my neck of the woods for once. Not sure if I will get out there though but I appreciate the info.
If you're not a "Not my Kojima" ultra-hater, I would highly recommend MGS Survive. It uses 5's assets, repurposes them for a non-canon(?--there's a small link that's actually possible to a series of missions that was seen in MGS 5), has some nice surprises storywise (though the copout of using dialogue and chat frames to get around animating half the dialogue isn't great) and definitely poses a challenge worthy of the series. There's a few boss battles that are pretty darn intense, like retrieving part of MG Rex against a giant horde and the final battle which really conveys a strong sense of desperation throughout.
I bought it for $20 on Black Friday from Target, and it was worth every penny back then.