Ok well to start out I hated this map to begin with. Yep...I said hated. I actually rage deleted it. But then I re-installed and gave it a few more gos and I found it worthy of keeping.
However there is one problem that you may not be aware of and that is the name of the map. I figured out after having read all the posts here that it's execution command is nazi_zombie_lost and not swan. I bring this up only because it has been pointed out to me that I have way too many maps...lol. "You are bat shit crazy for having that many maps" was the best response I have gotten. I found the UGXMods site because I have so many maps that they don't all show up on the ingame list of mods in WaW. In fact my list stops in the "Ds". I have right now including this map 278 and that would have been more but recently I weeded through my maps and deleted the really boring ones.
So to the problem.....that same execution line is the same as another map called lost that while it wasn't all that fun was still worth keeping. You may want to rename the files or people can just do what I finally did...rename the folder for the original "lost" to "lost(1)"' And it is not the first time this has happened. I remember one map had the line nazi_zombie_factory......LOL...same as der reise! Giggles.
The other problem is with the map manager. When I tried to download this map the green bar was full and then went out so I thought it had finished...it hadn't. No problem though I just googled the map and got it on another site so no worries. But my suggestion to the moderators would be to also have a backup plan like leaving a link where people can download the maps seperately and apart from the manager.
That being said I came to this site originally looking for a way to even play my excess maps and found the map manager a great help. I reccomend this site to EVERYONE and will continue to do so.
As for the map itself I find it to be stupid hard...I mean that in a good way....I judge maps based solely on their solo playability and this one is a challenge for sure. It is why i raged quit a couple of times but that is a compliment. You did a great job and that electro zombie is an ass clown and I can't wait to kill it...LOL.
Lastly I would say that to qualify any statements I have made I will point out that I have been actively playing zombie maps since WaW first came out, which is why I have so many maps. I keep track of my solo records on all my maps and deem myself as a good player. I don't rack up mega kills in co-op but I hold my own.