Man why did I bother doing this for him...
"zombie room 1"
"zombie room 2"
"feild without a top"
"us fighting the zombie hord"
"us preparing before we open the doors"
"The team"
"the hord (kinda hard to see"
The build looks rushed and horrible. The zombies look to few, the "fort" if thats what you want to call it doesn't look like it has enough attention, the "zombie rooms" shouldn't even need to be explained as to how bad they are and as for your "feild" as you named it... Well... Looks like four 64*64 plates with some random border and roof. Needs alot more work and effort. In fact; start again. Not even I can revive this build.
Also, why are you using gore mod...?