Empty Walls from WaW, I legit have played that shit almost as much as I've played the Vanilla maps.
It's pretty simple in paper, 4 soviets in Berlin have to fight zombies eternally, yes, no ending or easter eggs. Just classic barebones WaW zombies in a big map with around 8 perks (WaW-BO1 perks) you've got some nice stuff like the PAP and your basic wonders (Waffe/Raygun) but everyone can get the raygun, thankfully. You also got some soviet guns besides the iconic PPSH like the DP28.
Sadly papped p38 (starting gun) doesn't explode

but maybe the Tokarev (handgun in box) will, haven't tried yet
The map is so fucking big lol, highest I've gone it's like 40 to 50 and only because I really get bored quickly, still, I think there's a Plutonium OP GOLD server, if anyone want we can play

It's very easy to master, specially with friends. I holded a rank for round 41 with 4 players in that server, maybe someone went over that already, but we could try to beat it now.
That shit really feels like a DLC map, it's that good.
ALSO BIG RECOMMENDATION!!! Play the remastered maps mod for WaW, they add a lot of good stuff to the original 4 maps and keep it as classy as possible, trust me, it's the definitive way to play them and don't expect any crazy custom shit besides some campaign and multiplayer guns around. Only bad thing is that it fixes some real nice glitches like infinite gun slots
Fun stories? Well, back in ps3 while playing Kino with 3 friends at a very high round the power went off so... yeah, funny!
