[Gammix]

You can use funcidx just incase some one don't want to use few callbacks, they won't require it to be included in their code.

I don't like your Ammo change method. Looping for all slots (12) in OnPlayerUpdate. Actually you can simply use GetPlayerAmmo and store it in a variable in OnPlayerSpawn and then make checks in OnPlayerUpdate.
And just a tip, use break once you have what you want in your loop.

pawn Code:

new PlayerUpdateInfo[MAX_PLAYERS][UpdateData];
new PlayerFPSInfo[MAX_PLAYERS][FPSData];

You can use static so that no one can edit it outside from include.

OnPlayerNameChange
OnPlayerFreezeStateChange
The most useless ones i will ever use

BTW, i thought this was something new than this!



E: For some reason, i don't see your hooking?