While playing through some maps to get some motivation/inspiration for my own project, i have noticed some "bugs" on different locations.
2.4dev build 1325258124 on toshiba laptop x64 win7, gt525m
1. subway001 - looks like ´z-fighting´ to me
2. subway002 - this is the backside of the wall with the public phones, there is a nodraw texture on a visible face
3. subway003a - inconsistent, there is no wall, just painted stone, this is also true for the floor, the elevator and the stairway next to the elevator
4. subway004 - the trees cast no shadows