dcmd_medic(playerid, params[])
{
    #pragma unused params
    if(gTeam[playerid] == TEAM_MEDIC) return SendClientMessage(playerid, COLOR_ERROR, "You is an medic, You dont need to reques other medics, try /commands instead");
    else if(HasRequestedMedic[playerid] == 1) return SendClientMessage(playerid, COLOR_ERROR, "You have already requested an medic, please sit down and wait");
    else
    {
        for(new i=0; i<MAX_PLAYERS; i++)
        {
            if(gTeam[i] == TEAM_MEDIC)
            {
                new playername[MAX_PLAYER_NAME], string[128];
                GetPlayerName(i, playername, sizeof(playername));
    
                format(string, sizeof(string), "%s(%d) has requested medic in %s", playername, playerid, GetPlayerZone(playerid));
                SendClientMessage(i, COLOR_GREEN, string);
                printf("%s", string);
                
                SendClientMessage(i, COLOR_GREEN, "You have requested an medic");
                
                HasRequestedMedic[playerid] = 1;
                return 1;
            }
        }
        return 1;
    }
}

dcmd_food(playerid, params[])
{
    #pragma unused params
    if(gTeam[playerid] == TEAM_BISTRO) return SendClientMessage(playerid, COLOR_ERROR, "You is an bistro, You cant call for other bistros");
    else if(HasRequestedBistro[playerid] == 1) return SendClientMessage(playerid, COLOR_ERROR, "You have already requested an bistro, please sit down and wait");
    else
    {
        for(new i=0; i<MAX_PLAYERS; i++)
        {
            if(gTeam[i] == TEAM_BISTRO)
            {
                new playername[MAX_PLAYER_NAME], string[128];
                GetPlayerName(i, playername, sizeof(playername));

                format(string, sizeof(string), "%s(%d) has requested food in %s", playername, playerid, GetPlayerZone(playerid));
                SendClientMessage(i, COLOR_GREEN, string);
                printf("%s", string);

                SendClientMessage(i, COLOR_GREEN, "You have requested an food");

                HasRequestedBistro[playerid] = 1;
                return 1;
            }
        }
        return 1;
    }
}

C:\Users\Unknown\Documents\MyServer\gamemodes\Unknown.pwn(2756) : warning 209: function "dcmd_food" should return a value