I wanna know if I can play co op with my friend through parsec. Also I have questions about the meaning of this rule: "For executions of 2 players it is necessary to show BOTH SCREENS if you are emulator players the two with the fps counter and fps"

What are those BOTH SCREENS? (English it's not my native language, so sorry if it's a mistake of mine)

Mercenaries All stages S rank (solo and co op),I think that category would be interesting and would have cool strategies.