[MadeMan]

Or if you want to show the checkpoint to only 1 player, then:

pawn Код:

CPTimer[playerid] = SetTimerEx("UpdateCP", 1000, true, "ii", playerid, giveplayerid);

pawn Код:

forward UpdateCP(playerid, giveplayerid);
public UpdateCP(playerid, giveplayerid)
{
    new Float:pos[3];
    GetPlayerPos(giveplayerid, pos[0], pos[1], pos[2]);
    SetPlayerCheckpoint(playerid, pos[0], pos[1], pos[2], 3.0);
}