EAST_PROTECTED_ZONES = [trigger1];
WEST_PROTECTED_ZONES = [];

switch (playerSide) do {

    case WEST: {

        SPY_Talker globalChat "player in EAST_PROTECTED_ZONES";
        sleep 10;
        if (playerSide == west && {player in list} count _x > 0 EAST_PROTECTED_ZONES) then {player setDamage 1};

    };

    case EAST : {

        SPY_Talker globalChat "player in WEST_PROTECTED_ZONES";
        sleep 10;
        if (playerSide == east && {player in list} count _x > 0 WEST_PROTECTED_ZONES) then {player setDamage 1};

    };

};