When trying to compile I get:
SourcePawn Compiler 1.4.2-dev
Copyright (c) 1997-2006, ITB CompuPhase, (C)2004-2008 AlliedModders, LLC
G:\Sm Plugins\HardCoreFriendlyFire\HardCoreFriendly Fire.sp(45) : error 100: function prototypes do not match
G:\Sm Plugins\HardCoreFriendlyFire\HardCoreFriendly Fire.sp(46) : error 100: function prototypes do not match
G:\Sm Plugins\HardCoreFriendlyFire\HardCoreFriendly Fire.sp(10

: error 017: undefined symbol "SDKHooks_TakeDamage"
3 Errors.
Compilation Time: 0.17 sec
__________________