Here is a way to identify those using multiple accounts concurrently to game this game.
If they are using their accounts simultaneously, I suggest AH employ a nation identifier activated when this happens, a marker, like an asterisk on his roster name, and/or to be shown live on his icon. It should be seen by all players, not just friendlies, when a player is live using a second or possible multiple accounts, one in his country of loyalty, another listing any country he is using.
Another tool would be to cull scores, identify a player's scores in each nation, not just his overall raw score.
I remembered a player/pilot a few years ago having slipped up calling me out by name rather than aircraft type, even while out of icon range.
I asked him how he knew my game name while not being near the base? No answer. He had an account where he was perched in my base tower seeing who & what aircraft they were taking up. I had just entered the game, saw a red dot at the edge of the dar, and we were the only two aircraft in the region.
