I really enjoyed western
I love the zombie survival map. I've played it with my friends just yesterday and althought the difficulty really needs a bit of tweakings, with enough friends you can make it work.
https://steamcommunity.com/workshop/browse/?appid=730&searchtext=&childpublishedfileid=0&browsesort=toprated§ion=readytouseitems&requiredtags%5B%5D=Co-op+Strike
Once I played this map,it's a coop strike mod,but pretty good and fun.
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