Looks good.
Long ways, but r_speeds are ok. Some misaligned textures, but no problem, it's just 1th beta. No ice, very nice. Maybe the flag is a little bit campable and this long way in the mid is very small and you have not many chances to leave. Only blue team has autococker in the secret room. The barrel texture for the train looks horrible.
All in all, very nice first beta. Keep working on it.