刚才在BGG上问了，以下是一位外国朋友的解答，仅供大家参考讨论：Since the US is playing Che, the value is not modified and remains 3.
If the USA plays Che while Brezhnev is in affect, then Che's value remains 3 and the coups remain 3.
This is also a consistent rule for all OPs-value modification cards, which apply to cards that one player plays, not events of that players color.
