Fix lightside.

[Admins]

Possible solutions:

1. Don't allow speeders for trials, that might be fair since for the beam you also need 4000 exp or so (beam as the main anti-speeder weapon); don't know if trial players will play that map then though

2. Make mechs faster

3. Mounted automatic guns near the bases which can be used by defenders to shoot incoming speeders, would work like the speeder gun in all directions