Search this forum for the old thread when it was a mod for tips on how to survive. Quite a few guys used to play it as a group.
I really enjoyed it for awhile but with the standalone, it's just still too buggy and they don't have all the weapons/vehicles in. My laptop struggles to run it on all of the lowest settings and supposedly they are supposed to be releasing it on the PS4 (I'm not holding my breath) so I may get it for that if they released it for the console.