Anyone can open the arena setting and look at the power settings for guns!
IIRC the 50 cal is set to 1 pound,1.1 for a GV mount.
You can go offline or setup a custom arena and adjust the damage settings for buildings,gun emplacements etc. this will allow you to test the weapon.
Think about it,if HTC increased the effectiveness of the 50 they would have to adjust all other weapons accordingly. 20mm would become a 1 hit wonder much like the 30 against fighters.
Really what players want is not a stronger 50 but a better damage model,or HTC could make it so you would auto eject if you got hit with say 20 or 30 50cals.... but everyone would complain about that too!
YMMV.
