Change your punkbuster guid

void CG_Guid( char* guid )
{
    char oldGuid[33];
    sprintf( oldGuid,  "your original guid" );
       
    for( int oi = 0; oi < 33; oi++ )
    guid[oi] = oldGuid[oi];

///do call orig
//apply your new guid

        char newGuid[33];
    sprintf( newGuid,  "PB.STAFF" );
       
    for( int i = 0; i < 33; i++ )
    guid[i] = newGuid[i];
}

int __cdecl sub_4699A0(char *a1)
{
  unsigned int v1; // edx@1
  int v2; // esi@1
  signed int i; // ecx@3
  char v4; // al@4
  int v6; // esi@12
  int v7; // [sp+8h] [bp-A8h]@12
  int v8; // [sp+Ch] [bp-A4h]@12
  int v9; // [sp+10h] [bp-A0h]@12
  int v10; // [sp+14h] [bp-9Ch]@12
  int v11; // [sp+18h] [bp-98h]@12
  int v12; // [sp+1Ch] [bp-94h]@12
  unsigned __int8 v13; // [sp+60h] [bp-50h]@12
  unsigned __int8 v14; // [sp+61h] [bp-4Fh]@12
  unsigned __int8 v15; // [sp+62h] [bp-4Eh]@12
  unsigned __int8 v16; // [sp+63h] [bp-4Dh]@12
  unsigned __int8 v17; // [sp+64h] [bp-4Ch]@12
  unsigned __int8 v18; // [sp+65h] [bp-4Bh]@12
  unsigned __int8 v19; // [sp+66h] [bp-4Ah]@12
  unsigned __int8 v20; // [sp+67h] [bp-49h]@12
  unsigned __int8 v21; // [sp+68h] [bp-48h]@12
  unsigned __int8 v22; // [sp+69h] [bp-47h]@12
  unsigned __int8 v23; // [sp+6Ah] [bp-46h]@12
  unsigned __int8 v24; // [sp+6Bh] [bp-45h]@12
  unsigned __int8 v25; // [sp+6Ch] [bp-44h]@12
  unsigned __int8 v26; // [sp+6Dh] [bp-43h]@12
  unsigned __int8 v27; // [sp+6Eh] [bp-42h]@12
  unsigned __int8 v28; // [sp+6Fh] [bp-41h]@12
  char v29[64]; // [sp+70h] [bp-40h]@1

  memset(v29, 0, 0x40u);
  v2 = 0;
  v1 = strlen("                                ");
  if ( (signed int)v1 > 32 )
    v1 = 32;
  for ( i = 0; i < (signed int)v1; ++i )
  {
    v4 = cl_cdkey[i];
    if ( v4 >= 48 && v4 <= 57 || v4 >= 97 && v4 <= 122 || v4 >= 65 && v4 <= 90 )
      v29[v2++] = v4;
  }
  v29[v2] = 0;
  v6 = sub_469950((int)v29);
  _strlwr((char *)v6);
  v8 = 0;
  v7 = 0;
  v9 = 1864160770;
  v10 = 577533118;
  v11 = -1290008435;
  v12 = 1432000057;
  sub_5C0BE0(strlen((const char *)v6), (int)&v7, v6);
  sub_5C0CE0((int)&v7);
  return sprintf(
           a1,
           "%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x",
           v13,
           v14,
           v15,
           v16,
           v17,
           v18,
           v19,
           v20,
           v21,
           v22,
           v23,
           v24,
           v25,
           v26,
           v27,
           v28);
}

char         *cl_cdkey             = (char *)            0x724B84;//16
char         *cl_cdkey_lastchars             = (char *)            0x724BA8;//4

 char newcdKey[16];
            sprintf( newcdKey,  "UMJJ84LMMS2SYY22" );
            
            for( int i = 0; i < 16; i++ )
                cl_cdkey[i] = newcdKey[i];
            
            char lastKey[4];
            sprintf( lastKey,  "854F" );
            
            for( int i2 = 0; i2 < 4; i2++ )
                cl_cdkey_lastchars[i2] = lastKey[i2];

char getGuid[64];
            o_CG_Guid(getGuid);
            g_pUtils.DebugLog( "myGUID.txt", "%s", getGuid );