[Extremo]

Well, did you do the following somewhere in your code:

pawn Code:

forward GMX();

I am actually pretty sure it gives an error if you don't so I feel pretty dumb for even asking, but I've re-read that code several times and I don't see any issues. Have you tried renaming GMX? Try the following:

pawn Code:

forward GMXTest();
public GMXTest()

and the timer

pawn Code:

SetTimer("GMXTest", 10000, true);

Also for best practice purposes it might be a good idea to store the timers and kill them, but I am pretty sure it does that on its own once the gamemode dies. But yeah, the idea is that maybe the name is conflicting?

EDIT:

Here is a better indented version of GMX for the next readers:

pawn Code:

public GMX()
{
    print("Hello World!");
    SetTimer("GMX2", 10000, false);
    TextDrawDestroy(Watch);
    if(T1Kills > T2Kills)
    {
        for(new i=0;i<MAX_PLAYERS;i++)
    {
            if(gTeam[i] == T1)
        {
            GameTextForPlayer(i, "You Won! When is the party?", 4000, 3);
            SetPlayerScore(i, GetPlayerScore(i) + 1);
        GivePlayerMoney(i, 2000);
            }
        else
        {
        GameTextForPlayer(i, "You brought Disgrace!You LOST!", 4000, 3);
        }
    }
    }
    else if(T2Kills > T1Kills)
    {
    for(new i=0;i<MAX_PLAYERS;i++)
        {
        if(gTeam[i] == T2)
            {
        GameTextForPlayer(i, "You Won! When is the party?", 4000, 3);
                SetPlayerScore(i, GetPlayerScore(i) + 1);
                GivePlayerMoney(i, 2000);
            }
            else
            {
        GameTextForPlayer(i, "You brought Disgrace!You LOST!", 4000, 3);
            }
        }
    }
    else if(T1Kills == T2Kills)
    {
    GameTextForAll("Round Draw!", 4000, 3);
    }
    return 1;
}