[Jay_]

Code:

#include <a_samp>

public OnGameModeInit()
{
  AddPlayerClass(0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0); // required
}

public OnPlayerSpawn(playerid)
{
  SetPlayerTeam(playerid, 1);
}

Works fine.