[Firewire]

OnPlayerSpawn:

pawn Код:

SetPlayerTeam(playerid, 1); // If the player with the team 1 shoots another player in team 1, no damage will be conflicted.

pawn Код:

public OnPlayerTakeDamage(playerid, issuerid, Float:amount, weaponid, bodypart)
{
    if(GetPlayerTeam(playerid) == GetPlayerTeam(issuerid))
    {
       new Float:health, Float:arm;
       if(GetPlayerArmour(playerid) > 0) 
       {
            GetPlayerArmour(playerid, arm);
            SetPlayerArmour(playerid, floatadd(arm, amount));
       }
       else 
       {
            GetPlayerHealth(playerid, health);
            SetPlayerHealth(playerid, floatadd(health, amount));
        }
        return 1;
}

You also don't need to do this function as Neonman said, SetPlayerTeam doesn't allow you to harm another player on that team.