So this yopic is pretty much what the title suggests. For some reason when i add glass to a map it makes some parts where the glass transparant, how can i fix this. Secondly, Is it possible to add a useable tank into custom zombies?

for everyone who asks ascension is a must, you need the first strike dlc to play this map.(The op should clarify this more in his first post or in the txt file at the installation part).