muddy72 2019 a3

Probably the last version for the 72hr Jam.

- Shrunk the second point a bit
- Replaced the ground texture with one that should hopefully not have broken bumpmaps
- Raised and shrunk the lobby a bit
- Other misc stuff I forgot

- Remade mid and routes leading to it almost entirely to be smaller and less confusing
- Fixed broken spawn doors
- Added another route for defenders at the last point
- Some other misc stuff

my dumb ass forgot to put resupply lockers and spawn visualisers and so here they are