Talk:World 6/@comment-145.53.88.193-20170122152300/@comment-26082284-20170122171950

As you undoubtly noticed, every LBAS attack consist two waves of planes. Only planes lost on second wave count towards plane losses (so you've lost 4 planes in second attack wave), but proficiency calculations include lossed from both waves (so, most probably, your planes were wiped to 0 in first wave, wiping proficiency marks). It happens every now and then. I've experienced it a couple of times myself.