checked the file got this
~~~~
//SourceMod Batch Compiler
// by the SourceMod Dev Team
//// L4D2 Nauseating Boomer.sp
//
// L4D2 Nauseating Boomer.sp(204) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
//
//
// L4D2 Nauseating Boomer.sp(276) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
//
//
// L4D2 Nauseating Boomer.sp(277) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
//
//
// L4D2 Nauseating Boomer.sp(27
: warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
//
//
// L4D2 Nauseating Boomer.sp(279) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
//
//
// L4D2 Nauseating Boomer.sp(280) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
//
//
// L4D2 Nauseating Boomer.sp(281) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
//
//
// L4D2 Nauseating Boomer.sp(282) : warning 234: symbol "FCVAR_PLUGIN" is marked as deprecated: No logic using this flag ever existed in a released game. It only ever appeared in the first hl2sdk.
//
//
// L4D2 Nauseating Boomer.sp(591) : warning 234: symbol "FloatMul" is marked as deprecated: This native is internal implementation. For multiplication use the '*' operator.
//
//
// L4D2 Nauseating Boomer.sp(592) : warning 234: symbol "FloatMul" is marked as deprecated: This native is internal implementation. For multiplication use the '*' operator.
//
//
// L4D2 Nauseating Boomer.sp(59
: warning 234: symbol "FloatAdd" is marked as deprecated: This native is internal implementation. For addition use the '+' operator.
//
//
// L4D2 Nauseating Boomer.sp(599) : warning 234: symbol "FloatAdd" is marked as deprecated: This native is internal implementation. For addition use the '+' operator.
//
//
// L4D2 Nauseating Boomer.sp(615) : warning 234: symbol "FloatMul" is marked as deprecated: This native is internal implementation. For multiplication use the '*' operator.
//
//
// L4D2 Nauseating Boomer.sp(616) : warning 234: symbol "FloatMul" is marked as deprecated: This native is internal implementation. For multiplication use the '*' operator.
//
//
// L4D2 Nauseating Boomer.sp(622) : warning 234: symbol "FloatAdd" is marked as deprecated: This native is internal implementation. For addition use the '+' operator.
//
//
// L4D2 Nauseating Boomer.sp(623) : warning 234: symbol "FloatAdd" is marked as deprecated: This native is internal implementation. For addition use the '+' operator.
//
//
// L4D2 Nauseating Boomer.sp(1064) : warning 234: symbol "FloatMul" is marked as deprecated: This native is internal implementation. For multiplication use the '*' operator.
//
//
// L4D2 Nauseating Boomer.sp(1065) : warning 234: symbol "FloatMul" is marked as deprecated: This native is internal implementation. For multiplication use the '*' operator.
//
//
// L4D2 Nauseating Boomer.sp(1071) : warning 234: symbol "FloatAdd" is marked as deprecated: This native is internal implementation. For addition use the '+' operator.
//
//
// L4D2 Nauseating Boomer.sp(1072) : warning 234: symbol "FloatAdd" is marked as deprecated: This native is internal implementation. For addition use the '+' operator.
//
//
// Code size: 26912 bytes
// Data size: 10912 bytes
// Stack/heap size: 16384 bytes
// Total requirements: 54208 bytes
//
// 20 Warnings.
//
// Compilation Time: 0.52 sec
// ----------------------------------------
~~~~