Rehor is right.
The south (usually Alpha) controls the outcome in most GB1 games. The autosplit is where the problem starts. Bravo will ALWAYS be assigned positions in the starting grid at the North end of the map, BBs first...then down to FF. Alpha never shifts. After the 10 second countdown, most BBs (Bravo) are still aligned for north and those few who move to the south are usually overwhelmed by the 4-5 BBs running Alpha south. Alpha South ships are already in position and moving. Most Bravo BBs are still languishing or slowly moving, trying to figure out which way to go. Those few instances where Bravo sends a competent group of BBs to defend south, along with a good CV and maybe an SS and AA/ASW, will change the outcome. The game usually rotates clockwise, with Alpha south advancing and Bravo North advancing. So, if Bravo south steps up, they can stop Alpha south and control the game..again, Rehor is right.
Let's see if SDE can provide statistics on game outcome. Bravo or Alpha? I highly doubt it splits 50/50. My money is on Alpha winning 55% or more of the time.
This problem can be partially fixed with a little coding rewrite.
1) Random split the Bravo side, not alignment north.
2) Implement the same "No See" function in GB2 after the split.