The ammo display for energyweapons is bugged yes, need to fix it. Shotguns are strong but in the stats screen there are not a lot of kills with shotguns, so I guess it's ok. Pistols are best for 1 vs 1 duels, as seen in many Hongkong movies
The power of AP Pirces has been reduced a lot, and I think it's ok now, I don't have a lot of problems with people using AP Pirces.