
Total, for the entire map. No more, no less.
Although this has been done before, there has never (to my knowledge) been a fully-playable Single-Player map that demonstrates such a feat. Once I develop this map to be interesting enough, I'll eventually start posting screenshots of it. For now you go ahead and tell me that I have way too much time on my hands. =P
EDIT: And by the power of all, I shall give it a name, and it's name shall be ...