[Konstantinos]

Well, I'd recomment you not to use only one variable, because you will be confused as everyone would be.
I am not sure what are you using for, but I'd do it with that way.

pawn Код:

// TEAM1
team1_rank[ MAX_PLAYERS ]; // 1-4

// TEAM2
team2_rank[ MAX_PLAYERS ]; // 1-4

// TEAM3
team3_rank[ MAX_PLAYERS ]; // 1-4

// TEAM4
team4_rank[ MAX_PLAYERS ]; // 1-4

Send me if you want the part of the register/login/logout via PM and I'll help you on the saving.