Boom headshot Script - Uses matties event script:

block load
{
  es_keygroupdelete boomheadshot
  es_keygroupcreate boomheadshot
}

block unload
{
  es_keygroupdelete boomheadshot
}

event player_spawn
{
  es_keycreate boomheadshot event_var(es_steamid)
  es_keysetvalue boomheadshot event_var(es_steamid) streak 0
}

event player_death
{
  if (event_var(headshot) equalto 1) do
  {
    es_xsetinfo boomstreak 0
    es_xsetinfo boomsound 0
    // add to their streak
    es_keygetvalue boomstreak boomheadshot event_var(es_attackersteamid) streak
    es_xmath boomstreak + 1
    es_keysetvalue boomheadshot event_var(es_steamid) streak server_var(boomstreak)

    // set the sound based on streak
    if (server_var(boomstreak) > 2) then es_xsetinfo boomsound "PP_voice_clips/triple-boomheadshot.wav"
    else es_xsetinfo boomsound "PP_voice_clips/doug-boomheadshot.wav"

    // only attacker and victim hear the sound
    es_cexec server_var(userid) playgamesound server_var(boomsound)
    es_cexec server_var(attacker) playgamesound server_var(boomsound)
  }